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MEDIUM · CVSS 6.1 CISA Known Exploited Vulnerability

CVE-2024-11182

MDaemon Email Server Cross-Site Scripting (XSS) Vulnerability

MDaemon Email Server

An XSS issue was discovered in MDaemon Email Server before version 24.5.1c. An attacker can send an HTML e-mail message with JavaScript in an img tag. This could allow a remote attacker to load arbitrary JavaScript code in the context of a webmail user's browser window.

CVSS
6.1
MEDIUM
EPSS
33.3%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
15 Nov 2024
CWE-79

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 19 May 2025. US federal agencies were required to remediate it by 9 June 2025.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 33.3%, which is higher than 98.4% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

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

Frequently asked questions

Is CVE-2024-11182 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2024-11182.

What does CVE-2024-11182 affect?

CVE-2024-11182 affects MDaemon Email Server. An XSS issue was discovered in MDaemon Email Server before version 24.5.1c. An attacker can send an HTML e-mail message with JavaScript in an img tag. This could allow a remote attacker to load arbitrary JavaScript code in the context of a webmail user's browser window.

How severe is CVE-2024-11182?

CVE-2024-11182 is rated MEDIUM with a CVSS base score of 6.1. EPSS puts the probability of exploitation in the next 30 days at 33.3%, higher than 98.4% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 9 June 2025.

How should organisations respond to CVE-2024-11182?

Apply the vendor patch for MDaemon Email Server as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.