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

> Authenticated admins can exploit path traversal in mailcow to overwrite files and execute arbitrary commands on the server.

- **Severity:** Medium 6.2 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Apr 2024
- **Updated:** 12 Dec 2024
- **Also known as:** GHSA-4m8r-87gc-3vvp

## What is CVE-2024-30270?

CVE-2024-30270 is a medium-severity path traversal vulnerability in mailcow-dockerized, published on 4 Apr 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official 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.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2024-30270?

It affects 1 product.


Products: Mailcow Mailcow\.

## How do I fix CVE-2024-30270?

No fix has been published for CVE-2024-30270 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-30270 being exploited?

There is no known exploitation of CVE-2024-30270 in the wild and no public exploit code.

Public exploit code:

- The script exploits Mailcow vulnerabilities via XSS and RCE, emphasizing the need for robust security measures and responsible usage to enhance web application security. (github_poc): https://github.com/Alchemist3dot14/CVE-2024-30270-PoC

## Other vulnerabilities in mailcow-dockerized

- [CVE-2025-53909](https://insights.sbomify.com/CVE-2025-53909/): mailcow: dockerized vulnerable to SSTI in Quota and Quarantine Notification Template (critical 9.1)
- [CVE-2024-24760](https://insights.sbomify.com/CVE-2024-24760/): Mailcow Docker Container Exposure to Local Network (high 8.8)
- [CVE-2023-34108](https://insights.sbomify.com/CVE-2023-34108/): Manipulation of Internal Dovecot Variables in mailcow via crafted Passwords (high 8.8)
- [CVE-2022-31138](https://insights.sbomify.com/CVE-2022-31138/): OS Command Injection in mailcow (high 8.8)
- [CVE-2022-31245](https://insights.sbomify.com/CVE-2022-31245/): Command injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-30270 and fix it if it is affected.

What it is: CVE-2024-30270 is a medium-severity path traversal vulnerability in mailcow-dockerized, published on 4 Apr 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-30270 in the wild and no public exploit code.

Affected product: mailcow-dockerized. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-30270/ (Markdown: https://insights.sbomify.com/CVE-2024-30270/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-30270
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-30270
- OSV: https://osv.dev/vulnerability/CVE-2024-30270

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-30270/
Summaries are generated and may contain mistakes; the official description above is the record.