CVE-2026-84477 AVideo Stored XSS via Live Schedule Title Description
Attackers can inject malicious scripts via live schedule titles, leading to stored XSS and potential account takeover in victim 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-2026-84477?
CVE-2026-84477 is a medium-severity cross-site scripting vulnerability in WWBN AVideo, published on 1 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 Live_schedule::setTitle() and setDescription() store POST input without sanitization, allowing users with streaming permission to inject malicious scripts. Unauthenticated attackers can access remindMe.php to execute stored XSS payloads in victim browsers without requiring authentication.
Weakness: CWE-79
Which versions are affected by CVE-2026-84477?
How do I fix CVE-2026-84477?
No fix has been published for CVE-2026-84477 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-2026-84477 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-84477 exists.
Sources
Also known as GHSA-625v-vrhq-g274, GHSA-cr48-hcxm-m4m4.