{"id":53012,"date":"2025-06-20T13:04:23","date_gmt":"2025-06-20T13:04:23","guid":{"rendered":""},"modified":"2025-06-20T13:04:23","modified_gmt":"2025-06-20T13:04:23","slug":"xss%e6%94%bb%e6%92%83%e3%82%92%e9%98%b2%e5%be%a1%e3%81%99%e3%82%8b%e3%82%b7%e3%83%b3%e3%83%97%e3%83%ab%e3%81%aa%e3%82%b3%e3%83%b3%e3%83%86%e3%83%b3%e3%83%84%e3%83%bb%e3%82%bb%e3%82%ad%e3%83%a5","status":"publish","type":"post","link":"https:\/\/www.edgenexus.io\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/xss%e6%94%bb%e6%92%83%e3%82%92%e9%98%b2%e5%be%a1%e3%81%99%e3%82%8b%e3%82%b7%e3%83%b3%e3%83%97%e3%83%ab%e3%81%aa%e3%82%b3%e3%83%b3%e3%83%86%e3%83%b3%e3%83%84%e3%83%bb%e3%82%bb%e3%82%ad%e3%83%a5\/","title":{"rendered":"XSS\u653b\u6483\u3092\u9632\u5fa1\u3059\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u30dd\u30ea\u30b7\u30fc"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p>\u3053\u3053\u6570\u9031\u9593\u3001\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u95a2\u9023\u306eHTTP\u30d8\u30c3\u30c0\u3092\u6570\u591a\u304f\u53d6\u308a\u4e0a\u3052\u3066\u304d\u305f\u304c\u3001\u305d\u306e\u4e2d\u3067\u6700\u3082\u91cd\u8981\u306a\u306e\u306f<a href=\"https:\/\/www.edgenexus.io\/ja\/tag\/%e3%83%96%e3%83%ad%e3%83%83%e3%82%af%e6%b7%b7%e5%90%88%e3%82%b3%e3%83%b3%e3%83%86%e3%83%b3%e3%83%84\/\">Content-Security-Policy<\/a>\uff08CSP\uff09\u3067\u3042\u308b\u3002\u3053\u306e\u30d8\u30c3\u30c0\u304c\u63d0\u4f9b\u3059\u308b\u4fdd\u8b77\u30ec\u30d9\u30eb\u306e\u9ad8\u3055\u3082\u3055\u308b\u3053\u3068\u306a\u304c\u3089\u3001\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u3053\u306e\u30d8\u30c3\u30c0\u3092\u6700\u521d\u306b\u6b63\u3057\u304f\u5b9f\u88c5\u3059\u308b\u306e\u304c\u96e3\u3057\u3044\u3068\u3044\u3046\u7406\u7531\u3082\u3042\u308b\u3002\u6700\u8fd1\u8aac\u660e\u3057\u305fflightPATH\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406\u30eb\u30fc\u30eb\u3068\u540c\u69d8\u306b\u3001edgeNEXUS\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3068\u305d\u306e\u8a2a\u554f\u8005\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u79c1\u305f\u3061\u81ea\u8eab\u304c\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002  <\/p>\n<p>\u79c1\u305f\u3061\u306f\u5927\u5909\u306a\u4ed5\u4e8b\u3092\u3053\u306a\u3057\u3001\u75db\u307f\u3092\u611f\u3058\u3066\u304d\u305f\u306e\u3067\u3001\u3042\u306a\u305f\u304c\u305d\u3046\u3059\u308b\u5fc5\u8981\u306f\u306a\u3044\u3002\u3057\u304b\u3057\u3001\u5b9f\u65bd\u3059\u308b\u524d\u306b\u3042\u308b\u7a0b\u5ea6\u306e\u719f\u8003\u3068\u8a08\u753b\u304c\u5fc5\u8981\u306a\u3053\u3068\u306f\u5426\u5b9a\u3067\u304d\u306a\u3044\u3002\u3057\u304b\u3057\u3001\u305d\u308c\u3060\u3051\u306e\u4fa1\u5024\u306f\u3042\u308b\u3002\u3053\u306e\u30d8\u30c3\u30c0\u30fc\u306e\u30b3\u30f3\u30bb\u30d7\u30c8\u306f\u3068\u3066\u3082<a href=\"https:\/\/www.edgenexus.io\/ja\/tag\/%e3%82%b7%e3%83%b3%e3%83%97%e3%83%ab%e3%81%aawaf\/\">\u30b7\u30f3\u30d7\u30eb<\/a>\u3067\u3001\u540c\u69d8\u306b\u5f37\u529b\u3060\u3002\u4e00\u8a00\u3067\u8a00\u3048\u3070\u3001\u3053\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u8aad\u307f\u8fbc\u307e\u308c\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8a31\u53ef\u3055\u308c\u305f\u30aa\u30ea\u30b8\u30f3\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff08XSS\uff09\u3084\u30af\u30ea\u30c3\u30af\u30b8\u30e3\u30c3\u30ad\u30f3\u30b0\u306a\u3069\u3001\u307e\u3059\u307e\u3059\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u306b\u306a\u3063\u305f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u6d41\u884c\u3057\u3066\u3044\u308b\u30b3\u30fc\u30c9\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u306e\u6570\u3005\u3092\u5f37\u529b\u306b\u9632\u5fa1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002    <\/p>\n<p>JavaScript\u3001CSS\uff08CSS\u306f\u5371\u967a\u3067\u3059\uff09\u3001HTML\u30d5\u30ec\u30fc\u30e0\u3001\u30d5\u30a9\u30f3\u30c8\u3001\u753b\u50cf\u3001Java\u30a2\u30d7\u30ec\u30c3\u30c8\u306e\u3088\u3046\u306a\u57cb\u3081\u8fbc\u307f\u53ef\u80fd\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306a\u3069\u3067\u3059\u3002\u591a\u304f\u306e\u9078\u629e\u80a2\u304c\u3042\u308b\u306e\u306f\u7d20\u6674\u3089\u3057\u3044\u3053\u3068\u3060\u304c\u3001\u3053\u3053\u3067\u56f0\u96e3\u304c\u751f\u3058\u308b\u3002\u4eca\u65e5\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\uff08\u79c1\u305f\u3061\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u542b\u3080\uff09\u306b\u306f\u3001\u591a\u304f\u306e\u30bd\u30fc\u30b9\u304b\u3089\u591a\u6570\u306e\u3053\u308c\u3089\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u30dd\u30ea\u30b7\u30fc\u306e\u4e2d\u3067\u3053\u308c\u3089\u3059\u3079\u3066\u3092\u7279\u5b9a\u3057\u3001\u8aac\u660e\u3059\u308b\u3053\u3068\u306f\u3001\u304b\u306a\u308a\u306e\u52aa\u529b\u304c\u5fc5\u8981\u3067\u3059\u3002  <\/p>\n<p>\u305d\u306e\u524d\u306b\u3001\u30d8\u30c3\u30c0\u30fc\u306e\u5024\u306e\u8981\u7d20\u3068\u30dd\u30ea\u30b7\u30fc\u304c\u3069\u306e\u3088\u3046\u306a\u3082\u306e\u304b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u304a\u308f\u304b\u308a\u306e\u3088\u3046\u306b\u3001\u30dd\u30ea\u30b7\u30fc\u306f\u57fa\u672c\u7684\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7 (\u3053\u306e\u4f8b\u3067\u306f\u3059\u3079\u3066 -src \u3067\u7d42\u308f\u3063\u3066\u3044\u307e\u3059) \u3068\u3001\u305d\u308c\u305e\u308c\u306e\u30bf\u30a4\u30d7\u306b\u5bfe\u3057\u3066\u8a31\u53ef\u3055\u308c\u308b\u30bd\u30fc\u30b9\u306e\u9577\u3044\u30ea\u30b9\u30c8\u3067\u3059\u3002\u3053\u308c\u3089\u3092\u307e\u3068\u3081\u3066\u30dd\u30ea\u30b7\u30fc\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3068\u547c\u3073\u307e\u3059\u3002  <\/p>\n<p><strong>default-src\u300cself\u300ddata:; script-src\u300cself\u300d\u300cunsafe-inline\u300d; connect-src\u300cself\u300d; img-src\u300cself\u300ddata:; style-src\u300cself\u300d\u300cunsafe-inline\u300ddata:; font-src\u300cself\u300ddata:; child-src\u300cself\u300d<\/strong><\/p>\n<p>\u691c\u8a0e\u3067\u304d\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7\u306f\u4ed6\u306b\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u4e0a\u8a18\u306b\u793a\u3057\u305f\u3082\u306e\u304c\uff08\u30ea\u30b9\u30af\u3068\u666e\u53ca\u7387\u306b\u57fa\u3065\u304f\u79c1\u305f\u3061\u306e\u898b\u89e3\u3067\u306f\uff09\u6700\u3082\u91cd\u8981\u306a\u6307\u4ee4\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u305d\u308c\u305e\u308c\u304c\u3069\u306e\u3088\u3046\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u95a2\u9023\u3059\u308b\u306e\u304b\u3001\u8a73\u3057\u304f\u8aac\u660e\u3059\u308b\uff1b <\/p>\n<ul>\n<li><strong>default-src<\/strong>&#8211; \u5f8c\u304b\u3089\u6307\u5b9a\u3057\u306a\u3044\u5834\u5408\u3001\u307b\u3068\u3093\u3069\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7\uff08\u3059\u3079\u3066\u3067\u306f\u306a\u3044\uff09\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3002<\/li>\n<li><strong>script-src<\/strong>&#8211; \u30b9\u30af\u30ea\u30d7\u30c8\uff08JavaScript\u3092\u542b\u3080\uff09\u306e\u8a31\u53ef\u3055\u308c\u305f\u30bd\u30fc\u30b9\u3002<\/li>\n<li><strong>connect-src <\/strong>&#8211; \u63a5\u7d9a\u306b\u8a31\u53ef\u3055\u308c\u308b\u30bd\u30fc\u30b9 (\u4f8b\u3048\u3070\u3001\u30c1\u30e3\u30c3\u30c8\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u4f7f\u7528\u3055\u308c\u308b WebSocket \u3084 EventSource \u306a\u3069)<\/li>\n<li><strong>img-src<\/strong>&#8211; \u753b\u50cf\u306e\u30bd\u30fc\u30b9\u3092\u8a31\u53ef\u3059\u308b\u3002<\/li>\n<li><strong>style-src<\/strong>&#8211; CSS \u306e\u8a31\u53ef\u3055\u308c\u305f\u30bd\u30fc\u30b9\u3002<\/li>\n<li><strong>font-src<\/strong>&#8211; \u30d5\u30a9\u30f3\u30c8\u306e\u8a31\u53ef\u3055\u308c\u305f\u30bd\u30fc\u30b9<\/li>\n<li><strong>child-src<\/strong>&#8211; \u30d5\u30ec\u30fc\u30e0\u304a\u3088\u3073 iframe \u306b\u8a31\u53ef\u3055\u308c\u308b\u30bd\u30fc\u30b9\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u30b3\u30f3\u30c6\u30f3\u30c8\u30bf\u30a4\u30d7\u3068\u305d\u306e\u5024\u306f\u3001\u30bb\u30df\u30b3\u30ed\u30f3\u3067\u4e92\u3044\u306b\u533a\u5207\u3089\u308c\u308b\uff08delimited\uff09\u3002\u5404\u30bf\u30a4\u30d7\u306f\u3001\u4ee5\u4e0b\u306e\u5024\u306e1\u3064\u4ee5\u4e0a\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff1b <\/p>\n<ul>\n<li><strong>none&#8217;<\/strong>&#8211; \u3053\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7\u3092\u8a31\u53ef\u3057\u306a\u3044\u3002<\/li>\n<li><strong>\u300cself\u300d<\/strong>&#8211; \u3053\u306e\u30b5\u30a4\u30c8\u304b\u3089\u76f4\u63a5\u767a\u4fe1\u3055\u308c\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u3067\u3042\u308c\u3070\u3001\u3053\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7\u3092\u8a31\u53ef\u3057\u307e\u3059\uff08\u30b5\u30d6\u30c9\u30e1\u30a4\u30f3\u306f\u8a31\u53ef\u3057\u307e\u305b\u3093\uff09\u3002<\/li>\n<li><strong>unsafe-inline&#8217;<\/strong>&#8211; \u30a4\u30f3\u30e9\u30a4\u30f3CSS\u3068JavaScript\u3092\u8a31\u53ef\u3059\u308b\uff08\u3053\u308c\u306f\u6b8b\u5ff5\u306a\u304c\u3089<strong>\u975e\u5e38\u306b<\/strong>\u4e00\u822c\u7684\u3067\u3059\u3002\uff09<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u307e\u3059\uff1a<\/strong> <a href=\"https:\/\/en.wikipedia.org\/wiki\/Data_URI_scheme\">&#8211; \u30a4\u30f3\u30e9\u30a4\u30f3\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u3092<\/a>\u8a31\u53ef\u3059\u308b\uff08\u901a\u5e38\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306b\u30d5\u30a9\u30f3\u30c8\u3084\u753b\u50cf\u3092\u30a4\u30f3\u30e9\u30a4\u30f3\u3067\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\uff09<\/li>\n<li><strong>https:<\/strong>&#8211; HTTPS\u7d4c\u7531\u3067\u306e\u307f\u3053\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7\u3092\u8a31\u53ef\u3057\u307e\u3059\u3002<\/li>\n<li><strong>unsafe-eval&#8217;<\/strong>&#8211; \u30b3\u30fc\u30c9\u5b9f\u884c\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u5371\u967a\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u305f\u30c6\u30ad\u30b9\u30c8\u306e\u89e3\u6790\u3092\u8a31\u53ef\u3059\u308b\u3002<\/li>\n<li><strong>domain-name<\/strong>&#8211; \u6307\u5b9a\u3055\u308c\u305fdomain-name\uff08\u8a00\u3044\u63db\u3048\u308c\u3070\u3001\u30ea\u30e2\u30fc\u30c8\u30c9\u30e1\u30a4\u30f3\uff09\u304b\u3089\u767a\u4fe1\u3055\u308c\u305f\u5834\u5408\u3001\u3053\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7\u3092\u8a31\u53ef\u3059\u308b\u3002<\/li>\n<li><strong>* \u4efb\u610f\u306e 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Github<\/a>\u30b5\u30a4\u30c8\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059\u3002  <\/p>\n<p>flightPATH\u306fedgeNEXUS\u304c\u958b\u767a\u3057\u305f\u52d5\u7684\u306a\u30a4\u30d9\u30f3\u30c8\u30d9\u30fc\u30b9\u306e\u30eb\u30fc\u30eb\u30a8\u30f3\u30b8\u30f3\u3067\u3001\u8ca0\u8377\u5206\u6563\u3055\u308c\u305fIP\u3001HTTP\u3001HTTPS\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8\u306b\u64cd\u4f5c\u3057\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u307e\u3059\u3002\u9ad8\u5ea6\u306b\u8a2d\u5b9a\u53ef\u80fd\u3067\u5f37\u529b\u3067\u3042\u308a\u306a\u304c\u3089\u3001\u975e\u5e38\u306b\u4f7f\u3044\u3084\u3059\u3044\u3002 <\/p>\n<p>\u3053\u308c\u3089\u306e\u95a2\u9023\u30ea\u30f3\u30af\u306f\u3001\u3082\u3063\u3068\u77e5\u308a\u305f\u3044\u306a\u3089\u4e00\u8aad\u306e\u4fa1\u5024\u304c\u3042\u308b\uff1b<\/p>\n<p><a href=\"http:\/\/www.html5rocks.com\/en\/tutorials\/security\/content-security-policy\/\">http:\/\/www.html5rocks.com\/en\/tutorials\/security\/content-security-policy\/<\/a><\/p>\n<p><a href=\"https:\/\/developer.mozilla.org\/en\/docs\/Web\/Security\/CSP\/CSP_policy_directives\">https:\/\/developer.mozilla.org\/en\/docs\/Web\/Security\/CSP\/CSP_policy_directives<\/a><\/p>\n<p><a href=\"http:\/\/content-security-policy.com\/\">http:\/\/content-security-policy.com\/<\/a><\/p>\n<p><a href=\"https:\/\/www.clickintelligence.co.uk\/header-response-checker\/\">https:\/\/www.clickintelligence.co.uk\/header-response-checker\/<\/a><\/p>\n<blockquote><p>\u3053\u3053\u6570\u9031\u9593\u3001\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u95a2\u9023\u306eHTTP\u30d8\u30c3\u30c0\u3092\u6570\u591a\u304f\u53d6\u308a\u4e0a\u3052\u3066\u304d\u305f\u304c\u3001\u305d\u306e\u4e2d\u3067\u6700\u3082\u91cd\u8981\u306a\u306e\u306fContent-Security-Policy\uff08CSP\uff09\u3060\u308d\u3046\u3002<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; 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