What is CVE-2026-33354?

CVE-2026-33354 is a high-severity vulnerability in Wwbn Avideo, classified under External Control of File Name or Path. CVSS score: 7.6/10. Published 2026-03-23.

How severe is CVE-2026-33354?

High severity. CVSS v3 base score is 7.6 out of 10.

Vulnerability in Wwbn Avideo

CVE-2026-33354

WWBN AVideo is an open source video platform. In versions up to and including 26.0, `POST /objects/aVideoEncoder.json.php` accepts a requester-controlled `chunkFile` parameter intended for staged upload chunks. Instead of restricting that…

EPSS: 0.000 (15.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L.

Affected products

Wwbn Avideo — versions <= 26.0

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-4jw9-5hrc-m4j6 (x_refsource_CONFIRM)
https://github.com/WWBN/AVideo/commit/59bbd601a3f65a5b18c1d9e4eb11471c0a59214f (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33354?: CVE-2026-33354 is a high-severity vulnerability in Wwbn Avideo, classified under External Control of File Name or Path. CVSS score: 7.6/10. Published 2026-03-23.
How severe is CVE-2026-33354?: High severity. CVSS v3 base score is 7.6 out of 10.