Stored XSS vulnerability in MDaemon Email Server
Priority HIGH 83Exploited in the wildCWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation Active In CISA KEV since 2025-05-19CISA due date 2025-06-09
EPSS 0.33259 98th percentileScored 2026-11-07
Fix Fixed Email Server (MDaemon): 24.5.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Email Server (MDaemon) Fixed in 24.5.1
Timeline
- 2025-05-19 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2024-11182
- 2026-10-03 Alias added: GHSA-q3fg-4x56-mx94
References
More Mdaemon vulnerabilities
- TI-2002-01658 Alt-N Technologies Mdaemon 5.0 through 5.0.6 uses a weak encryption algorithm to store… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2024-11182 · CVE Program
- CVE-2024-11182 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-q3fg-4x56-mx94 · GitHub Advisory Database · CC BY 4.0
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