CVE-2026-105089 WWBN AVideo through 29.2.0 Stored XSS via trailer1 in YouPHPFlix2 Templates
Attackers with upload permissions can inject malicious scripts via video trailer URLs, leading to JavaScript execution in victims' browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-105089?
CVE-2026-105089 is a critical cross-site scripting vulnerability in WWBN AVideo, published on 4 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-105089?
How do I fix CVE-2026-105089?
No fix has been published for CVE-2026-105089 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-105089 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105089 exists.
Sources
Also known as GHSA-6wfr-c7fw-4xvw, GHSA-m6h8-gp7c-3qmv.