{"height":"190","categories":["Web Security Academy","XSS"],"blog_title":"Shikata Ga Nai","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcysec148.hatenablog.com%2Fentry%2F2025%2F06%2F05%2F170009\" title=\"DOM\u30d9\u30fc\u30b9\u306e\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff08DOM-based XSS\uff09\u3068\u306f\uff1f - Shikata Ga Nai\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"ThisIsOne","blog_url":"https://cysec148.hatenablog.com/","provider_name":"Hatena Blog","title":"DOM\u30d9\u30fc\u30b9\u306e\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff08DOM-based XSS\uff09\u3068\u306f\uff1f","width":"100%","published":"2025-06-05 17:00:09","url":"https://cysec148.hatenablog.com/entry/2025/06/05/170009","provider_url":"https://hatena.blog","version":"1.0","author_url":"https://blog.hatena.ne.jp/ThisIsOne/","image_url":null,"description":"Hello there, ('\u03c9')\u30ce \ud83d\udca1 DOM-based XSS\u306e\u6982\u8981 DOM-based XSS\uff08\u30c9\u30e0\u30d9\u30fc\u30b9\u30af\u30ed\u30b9\u30b5\u30a4\u30c8\u30b9\u30af\u30ea\u30d7\u30c6\u30a3\u30f3\u30b0\uff09\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u306eJavaScript\u306b\u3088\u3063\u3066\u767a\u751f\u3059\u308bXSS\u8106\u5f31\u6027\u3067\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u3067\u306f\u306a\u304f\u3001\u30d6\u30e9\u30a6\u30b6\u4e0a\u306eJavaScript\u30b3\u30fc\u30c9\u304c\u653b\u6483\u30d9\u30af\u30c8\u30eb\u306b\u306a\u308a\u307e\u3059\u3002 \ud83e\uddea \u767a\u751f\u306e\u4ed5\u7d44\u307f JavaScript\u304c\u3001URL\u306a\u3069\u306e\u653b\u6483\u8005\u304c\u5236\u5fa1\u53ef\u80fd\u306a\u30bd\u30fc\u30b9\uff08source\uff09\u304b\u3089\u5024\u3092\u53d6\u5f97\u3002 \u305d\u306e\u5024\u304c\u3001innerHTML \u3084 eval() \u306a\u3069\u306e\u5371\u967a\u306a\u30b7\u30f3\u30af\uff08sink\uff09\u3078\u6e21\u3055\u308c\u308b\u3002 \u305d\u306e\u7d50\u679c\u3001\u4efb\u610f\u306eJavaScript\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u3066\u3057\u307e\u3046\u3002 \ud83d\udccc \u4f8b\uff1a\u5178\u578b\u7684\u306aDOM X\u2026"}