| Título | SourceCodester SourceCodester KLiK Social Media Website v1.0.1 CRLF Injection |
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| Descrição | During security testing of the delete-forum.php endpoint, an HTTP header injection vulnerability was identified. The application takes user-supplied input from the page parameter and unsafely concatenates it into the Location HTTP response header without proper validation, sanitization, or encoding.
By injecting CR (Carriage Return, %0d) and LF (Line Feed, %0a) characters into the page parameter, an attacker can manipulate the HTTP response structure. The vulnerability is triggered when the application performs a redirect via the header() function after certain conditions are met.
Example malicious request:
GET /includes/delete-forum.php?id=1&page=forum%0d%0aSet-Cookie:%20session=Hijacked%0d%0aX-IGNORE: HTTP/1.1
Host: target.com
Cookie: PHPSESSID=valid_session |
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| Fonte | ⚠️ https://github.com/msaad1999/KLiK-SocialMediaWebsite |
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| Utilizador | g111 (UID 92409) |
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| Submissão | 27/04/2026 03h58 (há 5 meses) |
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| Moderação | 24/05/2026 08h52 (27 days later) |
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| Estado | Duplicado |
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| Entrada VulDB | 365401 [KLiK SocialMediaWebsite 1.0 HTTP GET Request Parameter Elevação de Privilégios] |
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| Pontos | 0 |
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