What is CVE-2026-33351?

CVE-2026-33351 is a critical-severity vulnerability in Wwbn Avideo, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.1/10. Published 2026-03-23.

How severe is CVE-2026-33351?

Critical severity. CVSS v3 base score is 9.1 out of 10.

SSRF in Wwbn Avideo

CVE-2026-33351

WWBN AVideo is an open source video platform. Prior to version 26.0, a Server-Side Request Forgery (SSRF) vulnerability exists in `plugin/Live/standAloneFiles/saveDVR.json.php`. When the AVideo Live plugin is deployed in standalone mode (the intended configuration for this file), the `$_REQUEST['webSiteRootURL']` parameter is used directly to construct a URL that is fetched server-side via `file_get_contents()`. No authentication, origin validation, or URL allowlisting is performed. Version 26.0 contains a patch for the issue.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.004 (35.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Wwbn Avideo — versions < 26.0

Weakness classification (CWE)

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

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33351?: CVE-2026-33351 is a critical-severity vulnerability in Wwbn Avideo, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.1/10. Published 2026-03-23.
How severe is CVE-2026-33351?: Critical severity. CVSS v3 base score is 9.1 out of 10.