What is CVE-2026-33766?

CVE-2026-33766 is a medium-severity vulnerability in Wwbn Avideo, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2026-03-27.

How severe is CVE-2026-33766?

Medium severity. CVSS v3 base score is 6.5 out of 10.

SSRF in Wwbn Avideo

CVE-2026-33766

WWBN AVideo is an open source video platform. In versions up to and including 26.0, `isSSRFSafeURL()` validates URLs against private/reserved IP ranges before fetching, but `url_get_contents()` follows HTTP redirects without re-validating the redirect target. An attacker can bypass SSRF protection by redirecting from a public URL to an internal target. Commit 8b7e9dad359d5fac69e0cbbb370250e0b284bc12 contains a patch.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-03-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.4th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Wwbn Avideo — versions <= 26.0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

github.com/WWBN/AVideo/security/advisories/GHSA-f359-r3pv-2phf (Exploit, Vendor Advisory)
github.com/WWBN/AVideo/commit/8b7e9dad359d5fac69e0cbbb370250e0b284bc12 (Patch)

Frequently asked questions

What is CVE-2026-33766?: CVE-2026-33766 is a medium-severity vulnerability in Wwbn Avideo, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2026-03-27.
How severe is CVE-2026-33766?: Medium severity. CVSS v3 base score is 6.5 out of 10.