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
- 17.71% probability · 97th percentile
- CISA KEV
- Listed 19 May 2025 · due 9 June 2025
- Weakness
- CWE-79
- Affected
- mdaemon/mdaemon
- Source
- security@eset.com
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. Refreshed daily.