EUVD-2026-14504
GHSA-8wf4-c4x3-h952
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionNVD
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the downloadVideoFromDownloadURL() function in objects/aVideoEncoder.json.php saves remote content to a web-accessible temporary directory using the original URL's filename and extension (including .php). By providing an invalid resolution parameter, an attacker triggers an early die() via forbiddenPage() before the temp file can be moved or cleaned up, leaving an executable PHP file persistently accessible under the web root at videos/cache/tmpFile/. Commit 6da79b43484099a0b660d1544a63c07b633ed3a2 contains a patch.
AnalysisAI
WWBN AVideo versions up to and including 26.0 contain a critical file upload vulnerability (CWE-434) that allows authenticated attackers to upload and execute arbitrary PHP code on the server. The vulnerability exists in the downloadVideoFromDownloadURL() function which saves remote content with its original filename and extension to a web-accessible directory; by providing an invalid resolution parameter, attackers can bypass cleanup mechanisms, leaving executable PHP files persistent under the web root. …
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RemediationAI
Within 24 hours: Identify all WWBN AVideo deployments and document current versions; disable remote file download functionality if operationally feasible. Within 7 days: Implement network-level restrictions limiting file upload endpoints to trusted sources only; conduct access review of authenticated user accounts. …
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External POC / Exploit Code
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