vBulletin up to and including 5.3.x on Windows allows remote PHP code execution because a require_once call is reachable with an unauthenticated request that can include directory traversal sequences to specify an arbitrary pathname, and because ../ traversal is blocked but ..\ traversal is not blocked. For example, an attacker can make an invalid HTTP request containing PHP code, and then make an index.php?routestring= request with enough instances of ".." to reach an Apache HTTP Server log file.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
vbulletin vbulletin 5.0.0 |
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vbulletin vbulletin |
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