CVE-2017-17671

vBulletin through 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.

Score
CVSS 3.1 9.8 Critical
Status
Modified - cve@mitre.org
Published
2017-12-14
Last modified
2024-08-05
Weaknesses
CWE-22

Affected products

References

 
 
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