CVE-2024-11182
MDaemon Email Server Cross-Site Scripting (XSS) Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 9 June 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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 4.0
- 5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 33.26% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 19 May 2025 · due 9 June 2025
- Weakness
- CWE-79
- Affected
- mdaemon/mdaemon
- Source
- security@eset.com
EPSS moved from 31.4% on 13 October 2026 to 33.3% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://files.mdaemon.com/mdaemon/beta/RelNotes_en.html ; https://mdaemon.com/pages/downloads-critical-updates ; https://nvd.nist.gov/vuln/detail/CVE-2024-11182
References
- https://files.mdaemon.com/mdaemon/beta/RelNotes_en.htmlRelease Notes
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-11182US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.