CVE-2025-66823

MEDIUM

TrueConf Server 5.5.2.10813 - HTML Injection

Title source: llm

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).

References (2)

Core 2

Core References

Exploit, Third Party Advisory

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

View Exploit ZIP pw:eip

Product

https://trueconf.com

Scores

CVSS v3 5.4

EPSS 0.0005

EPSS Percentile 15.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

trueconf/server 5.5.2.10813

Published Dec 30, 2025

Tracked Since Feb 18, 2026