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.
Conclusion & alert: CVE-2024-30270 is rated High Exploit Risk (69/100): CVSS Medium severity, with high exploitation likelihood (EPSS 27.35%, 98th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 48.79% | 27.35% | -21.45% |
| 2 | 2026-04-23 | 49.44% | 48.79% | -0.65% |
| 3 | 2025-11-21 | — | 49.44% | — |
Full EPSS history (25 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.2 | 3.1 | MEDIUM |
|
0.7 | 5.5 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mailcow | mailcow:_dockerized | < 2024-04 | cpe:2.3:a:mailcow:mailcow\:_dockerized:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-4m8r-87gc-3vvp | Vendor Advisory |
| https://mailcow.email/posts/2024/release-2024-04 | Release Notes |
| https://www.sonarsource.com/blog/remote-code-execution-in-mailcow-always-sanitize-error-messages | Exploit Third Party Advisory |
| https://www.vicarius.io/vsociety/posts/mailcow-with-xss-and-path-traversal-cve-2024-31204-and-cve-2024-30270 | Exploit Third Party Advisory |