CVE-2026-88868 AVideo LiveLinks Stored XSS via title and description fields

Critical 9.3 Published Updated

Stored XSS in AVideo LiveLinks allows attackers to inject scripts that execute in visitors' browsers, potentially leading to session hijacking or admin takeover.

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-2026-88868?

CVE-2026-88868 is a critical cross-site scripting vulnerability in WWBN AVideo, published on 10 Sep 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

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LiveLinks plugin where title and description fields are stored without sanitization. A user with canStream permission can inject malicious scripts that execute in the browser of every visitor viewing the live-link page, including administrators, within the site origin.

Weakness: CWE-79

Which versions are affected by CVE-2026-88868?

How do I fix CVE-2026-88868?

No fix has been published for CVE-2026-88868 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-2026-88868 being exploited?

There is no known exploitation of CVE-2026-88868 in the wild and no public exploit code.

Sources

Also known as GHSA-9c2q-wpvm-f24r, GHSA-jwmw-j657-28fq.

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