SB2025051561 - Stored XSS in MDaemon



SB2025051561 - Stored XSS in MDaemon

Published: May 15, 2025

Security Bulletin ID SB2025051561
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Cross-site scripting (CVE-ID: CVE-2025-3929)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when handling IMG tag inside email messages. A remote attacker can trick the victim into opening a specially crafted email message and execute arbitrary JavaScript code in user's browser in context of vulnerable website.



Remediation

Install update from vendor's website.