CVE-2025-66823 | Severity.io

Description

An HTML Injection vulnerability in TrueConf server 5.5.2.10813 in the conference description field allows an attacker to inject arbitrary HTML in the Create/Edit conference functionality. The payload will be triggered when the victim opens the Conference Info page ([conference url]/info).

Related CPE's

Vulnerable

References

https://github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66823/README.md

ExploitThird Party Advisory

https://trueconf.com

Product

https://github.com/x00nullbit/CVE-References/blob/main/CVE-2025-66823/README.md

ExploitThird Party Advisory

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0

Secondary

CWE-79

CVSS impact metrics

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

5.4 · Medium

Information

Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2025-12-30T20:16:01.413Z

3 weeks ago

Last modified

2026-01-07T15:39:03.947Z

2 weeks ago