CVE-2026-33717
AVideo Vulnerable to Remote Code Execution via Persistent PHP Temp File in Encoder downloadURL with Resolution Validation Abort
HIGH 8.8EPSS 0.5%
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.
- Affected
- WWBN · AVideo
- CVSS v3.1 GITHUB
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.55% chance of exploitation in the next 30 days, 45th percentile
- Published
- 2026-03-23
- Updated
- 2026-03-24
Proof-of-concept exploits (1)
Security advisories
- WWBN/AVideo/security/advisories/GHSA-8wf4-c4x3-h952
- WWBN/AVideo/commit/6da79b43484099a0b660d1544a63c07b633ed3a2