What is CVE-2025-66824?

CVE-2025-66824 is a high-severity vulnerability in Trueconf Server, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2025-12-30.

How severe is CVE-2025-66824?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Trueconf Server

CVE-2025-66824

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Trueconf Server — versions 5.5.2.10813
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-66824?: CVE-2025-66824 is a high-severity vulnerability in Trueconf Server, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2025-12-30.
How severe is CVE-2025-66824?: High severity. CVSS v3 base score is 8.7 out of 10.