What is CVE-2026-105089?

CVE-2026-105089 is a high-severity vulnerability in Wwbn Avideo, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-10-04.

How severe is CVE-2026-105089?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Wwbn Avideo

CVE-2026-105089

WWBN AVideo through 29.2.0 contains a stored cross-site scripting vulnerability that allows users with upload permission to inject script by setting a malicious video trailer1 URL. The value is rendered unescaped in YouPHPFlix2 templates and channel playlists, letting attackers break out of onclick strings or iframe src attributes to execute JavaScript in victims' browsers.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-04.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Wwbn Avideo

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/WWBN/AVideo/security/advisories/GHSA-6wfr-c7fw-4xvw (vendor-advisory)
github.com/WWBN/AVideo/commit/c4adfde13d1f18e3a415722471efdcd8ab480035 (patch)
www.vulncheck.com/advisories/wwbn-avideo-through-29.2.0-stored-xss-via-trailer1… (third-party-advisory)

Frequently asked questions

What is CVE-2026-105089?: CVE-2026-105089 is a high-severity vulnerability in Wwbn Avideo, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-10-04.
How severe is CVE-2026-105089?: High severity. CVSS v3 base score is 8.7 out of 10.