CVE-2026-60092 AVideo - Stored Cross-Site Scripting via Unescaped User-Agent in Participants Panel
An anonymous attacker can inject JavaScript via the User-Agent header in public meetings, leading to script execution in the meeting host's browser session.
- 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-2026-60092?
CVE-2026-60092 is a medium-severity cross-site scripting vulnerability in AVideo, published on 8 Jul 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 (Meet plugin) through commit e8d6119f3cb1b849149906efeb0a41fc024f59f8 contains a stored cross-site scripting vulnerability in the Meet plugin's getMeetInfo.json.php endpoint. When a participant joins a public meeting, the raw HTTP User-Agent header is stored (meet_join_log.user_agent) without sanitization (bypassing AVideo's setter-level xss_esc() layer) and later echoed without output encoding (no htmlspecialchars()) in the Participants management panel, which is accessible to the meeting host and site administrators. An anonymous, unauthenticated attacker can join any public meeting while supplying a User-Agent header containing an HTML/JavaScript payload; the payload is persisted and executes in the privileged, authenticated browser session of the meeting host or a site administrator when they open the participant list. The issue was unpatched at the time of the report.
Weakness: CWE-79
Which versions are affected by CVE-2026-60092?
2 open source packages ship an affected version, including wwbn/avideo.
| Package | Affected | Fixed in |
|---|---|---|
wwbn/avideo Packagist | All versions to 29.0 | None |
wwbn/avideo Packagist | All versions to 29.0 | None |
How do I fix CVE-2026-60092?
No fix has been published for CVE-2026-60092 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-2026-60092 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-60092 exists.
Sources
Also known as GHSA-4f8v-jp98-cpv3, GHSA-7cqp-7cfv-6c3q.