What is CVE-2026-33647?

CVE-2026-33647 is a high-severity vulnerability in Wwbn Avideo, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-03-23.

How severe is CVE-2026-33647?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Wwbn Avideo

CVE-2026-33647

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `ImageGallery::saveFile()` method validates uploaded file content using `finfo` MIME type detection but derives the saved filename extension from the u…

Vulnerability class: Unrestricted File Upload

EPSS: 0.004 (60.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Wwbn Avideo — versions <= 26.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-wxjw-phj6-g75w (x_refsource_CONFIRM)
https://github.com/WWBN/AVideo/commit/345a8d3ece0ad1e1b71a704c1579cbf885d8f3ae (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33647?: CVE-2026-33647 is a high-severity vulnerability in Wwbn Avideo, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-03-23.
How severe is CVE-2026-33647?: High severity. CVSS v3 base score is 8.8 out of 10.