What’s Vulnerable › Vulnerabilities

CVE-2024-30270: mailcow Path Traversal and Arbitrary Code Execution Vulnerability

• Severity: medium (CVSS 6.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 27.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-04-04 · updated 2026-06-17
• Weakness: CWE-22

Description

mailcow: dockerized is an open source groupware/email suite based on docker. A security vulnerability has been identified in mailcow affecting versions prior to 2024-04. This vulnerability is a combination of path traversal and arbitrary code execution, specifically targeting the `rspamd_maps()` function. It allows authenticated admin users to overwrite any file writable by the www-data user by exploiting improper path validation. The exploit chain can lead to the execution of arbitrary commands on the server. Version 2024-04 contains a patch for the issue.

Affected products

• mailcow-dockerized: before 2024-04 — fixed in 2024-04

How to fix

Upgrade to a fixed version: mailcow-dockerized 2024-04. Check the vendor advisory for mitigations.

References

• https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-4m8r-87gc-3vvp
• https://mailcow.email/posts/2024/release-2024-04
• https://www.sonarsource.com/blog/remote-code-execution-in-mailcow-always-sanitize-error-messages
• https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-4m8r-87gc-3vvp
• https://mailcow.email/posts/2024/release-2024-04
• https://www.vicarius.io/vsociety/posts/mailcow-with-xss-and-path-traversal-cve-2024-31204-and-cve-2024-30270

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