CVE-2025-66824

Name: CVE-2025-66824
Creator: NVD / NIST
Published: 2025-12-30T19:15:44.58+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2025-66824 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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). EPSS estimates a 0.26% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.7/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

EPSS Probability

0.26%

17.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Trueconf	Server	5.5.2.10813

References

https://github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66824/README.mdExploit, Third Party Advisory
https://trueconf.comProduct
https://github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66824/README.mdExploit, Third Party Advisory

Timeline

Published: Dec 30, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-66824?

How severe is CVE-2025-66824?

CVE-2025-66824 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2025-66824?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-66824?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST