What is CVE-2026-34247?

CVE-2026-34247 is a medium-severity vulnerability in Wwbn Avideo, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-03-27.

How severe is CVE-2026-34247?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Wwbn Avideo

CVE-2026-34247

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `plugin/Live/uploadPoster.php` endpoint allows any authenticated user to overwrite the poster image for any scheduled live stream by supplying an arbit…

Vulnerability class: Broken Access Control

EPSS: 0.000 (2.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Wwbn Avideo — versions <= 26.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-g3hj-mf85-679g (x_refsource_CONFIRM)
https://github.com/WWBN/AVideo/commit/5fcb3bdf59f26d65e203cfbc8a685356ba300b60 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34247?: CVE-2026-34247 is a medium-severity vulnerability in Wwbn Avideo, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-03-27.
How severe is CVE-2026-34247?: Medium severity. CVSS v3 base score is 5.4 out of 10.