| 제목 | wuzhicms <=4.1.0 SSRF |
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| 설명 | The rich-text editor's remote-image-fetch feature, attachment::ckeditor(), performs no login-state/cookie validation whatsoever (in stark contrast to file_brower() in the same file, which does require authentication). The action=catchimage branch calls ckditor::saveRemote(), which takes URLs from the user-submitted source[] array and hands each one to Uploader::saveRemote(). That method's only validation on the URL is strpos($imgUrl,"http")!==0 (merely requiring an http prefix) — there is no internal/private IP blacklist, no domain whitelist, and no port restriction. It then directly calls get_headers($imgUrl,1) and readfile($imgUrl,false,$context), causing the server to issue a request, under its own network identity, to any attacker-specified host:port. |
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| 원천 | ⚠️ https://github.com/wuzhicms/wuzhicms/issues/221 |
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| 사용자 | ZAST.AI (UID 87884) |
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| 제출 | 2026. 08. 18. PM 12:07 (1 월 ago) |
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| 모더레이션 | 2026. 09. 16. AM 09:43 (29 days later) |
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| 상태 | 수락 |
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| VulDB 항목 | 405512 [WuzhiCMS 까지 4.1.0 Remote Image Fetch index.php ckditor::saveRemote source[] 권한 상승] |
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| 포인트들 | 19 |
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