| 标题 | SourceCodester SourceCodester KLiK Social Media Website v1.0.1 CRLF Injection |
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| 描述 | During security testing of the delete-post.php endpoint, an HTTP header injection vulnerability was discovered in the topic parameter. The application takes user-supplied input from the topic parameter and directly concatenates it into the Location HTTP response header without proper sanitization, validation, or encoding.
By injecting CR (Carriage Return, %0d) and LF (Line Feed, %0a) characters into the topic parameter, an attacker can manipulate the HTTP response structure. The vulnerability is triggered when the application performs a redirect via the header() function after specific conditions are met (e.g., SQL statement preparation failures or query results).
Example malicious request:
GET /includes/delete-post.php?topic=1%0d%0aSet-Cookie:%20session=Hijacked%0d%0aX-IGNORE:&post=123&by=1 HTTP/1.1
Host: target.com
Cookie: PHPSESSID=valid_session |
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| 来源 | ⚠️ https://github.com/msaad1999/KLiK-SocialMediaWebsite |
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| 用户 | g111 (UID 92409) |
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| 提交 | 2026-04-27 04時01分 (6 月前) |
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| 管理 | 2026-05-24 08時52分 (27 days later) |
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| 状态 | 重复 |
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| VulDB条目 | 365401 [KLiK SocialMediaWebsite 1.0 HTTP GET Request Parameter 权限提升] |
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| 积分 | 0 |
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