CVE-2026-105086 WWBN AVideo 12.4 through 29.2.0 Stored XSS via Double-Encoded Video Title
Authenticated attackers can inject malicious scripts into video titles, leading to stored XSS execution in various user-facing pages.
- 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-2026-105086?
CVE-2026-105086 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 12.4 through 29.2.0 contains a stored cross-site scripting vulnerability that allows authenticated uploaders to inject HTML by submitting doubly-encoded entities in video titles. Because safeString() strips tags before decoding entities and runs twice via setTitle() and save(), attackers can store markup that executes in trending, gallery, embed, and playlist pages.
Weakness: CWE-79
Which versions are affected by CVE-2026-105086?
How do I fix CVE-2026-105086?
No fix has been published for CVE-2026-105086 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-2026-105086 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105086 exists.
Sources
Also known as GHSA-6rvj-w837-rcgv, GHSA-q62w-927x-vhhf.