CVE-2025-66824: TrueConf Server

High severity, CVSS 8.7. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• TrueConf TrueConf Server: version 5.5.2.10813 only

Published 2025-12-30. Last modified 2026-08-20.