What is CVE-2026-33043?

CVE-2026-33043 is a high-severity vulnerability in Wwbn Avideo, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 8.1/10. Published 2026-03-20.

How severe is CVE-2026-33043?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Wwbn Avideo

CVE-2026-33043

WWBN AVideo is an open source video platform. In versions 25.0 and below, /objects/phpsessionid.json.php exposes the current PHP session ID to any unauthenticated request. The allowOrigin() function reflects any Origin header back in Acces…

EPSS: 0.000 (5.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Wwbn Avideo — versions < 26.0

Weakness classification (CWE)

CWE-942 — Permissive Cross-domain Policy with Untrusted Domains

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-qc3p-398r-p59j (x_refsource_CONFIRM)
https://github.com/WWBN/AVideo/commit/9f4f51e5df5e3343400f9d0068705f5482b6f930 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33043?: CVE-2026-33043 is a high-severity vulnerability in Wwbn Avideo, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 8.1/10. Published 2026-03-20.
How severe is CVE-2026-33043?: High severity. CVSS v3 base score is 8.1 out of 10.