Vulnerability Description
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `aVideoEncoderChunk.json.php` endpoint is a completely standalone PHP script with no authentication, no framework includes, and no resource limits. An unauthenticated remote attacker can send arbitrary POST data which is written to persistent temp files in `/tmp/` with no size cap, no rate limiting, and no cleanup mechanism. This allows trivial disk space exhaustion leading to denial of service of the entire server. Commit 33d1bae6c731ef1682fcdc47b428313be073a5d1 contains a patch.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wwbn | Avideo | <= 26.0 |
Related Weaknesses (CWE)
References
- https://github.com/WWBN/AVideo/commit/33d1bae6c731ef1682fcdc47b428313be073a5d1Patch
- https://github.com/WWBN/AVideo/security/advisories/GHSA-vv7w-qf5c-734wExploitMitigationVendor Advisory
FAQ
What is CVE-2026-33483?
CVE-2026-33483 is a vulnerability with a CVSS score of 7.5 (HIGH). WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `aVideoEncoderChunk.json.php` endpoint is a completely standalone PHP script with no authentication, no framewor...
How severe is CVE-2026-33483?
CVE-2026-33483 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33483?
Check the references section above for vendor advisories and patch information. Affected products include: Wwbn Avideo.