CVE-2025-66824 Cross-site scripting in n/a

High 7.3 Published 30 Dec 2025 Updated 2 Jan 2026

Attackers can inject scripts into the meeting location field to achieve full account takeover when victims view the conference info page.

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-2025-66824?

CVE-2025-66824 is a high-severity cross-site scripting vulnerability in n/a, published on 30 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A Stored Cross-Site Scripting (XSS) vulnerability exists in the Meeting location field of the Create/Edit Conference functionality in TrueConf Server v5.5.2.10813. The injected payload is stored via the meeting_room parameter and executed when users visit the Conference Info page, allowing attackers to achieve full Account Takeover (ATO). This issue is caused by improper sanitization of user-supplied input in the meeting_room field.

Weakness: CWE-79

Which versions are affected by CVE-2025-66824?

It affects 1 product.

Products include Trueconf Trueconf Server.

How do I fix CVE-2025-66824?

No fix has been published for CVE-2025-66824 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-2025-66824 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66824 exists.

Sources

Also known as GHSA-wc9p-rvp2-mc4r.