CVE-2024-30270

MEDIUM

mailcow < 2024-04 - Authenticated Path Traversal and Arbitrary Code Execution via rspamd_maps()

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2024-30270. PoCs published by Alchemist3dot14.

AI-analyzed exploit summary This repository contains a functional Python exploit for CVE-2024-30270, targeting Mailcow instances via XSS and RCE. The exploit sends a malicious email with an XSS payload to overwrite server templates and execute arbitrary commands.

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.

Exploits (1)

nomisec WORKING POC 4 stars

by Alchemist3dot14 · poc

https://github.com/Alchemist3dot14/CVE-2024-30270-PoC

View Code ZIP pw:eip

This repository contains a functional Python exploit for CVE-2024-30270, targeting Mailcow instances via XSS and RCE. The exploit sends a malicious email with an XSS payload to overwrite server templates and execute arbitrary commands.

Classification

Working Poc 90%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: Mailcow

No auth needed

Prerequisites: Access to a vulnerable Mailcow instance · Victim interaction to open the malicious email

MITRE ATT&CK

T1189 - Drive-by Compromise T1059 - Command and Scripting Interpreter

devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (4)

Core 4

Core References

Exploit, Third Party Advisory

https://www.vicarius.io/vsociety/posts/mailcow-with-xss-and-path-traversal-cve-2024-31204-and-cve-2024-30270

Vendor Advisory x_refsource_confirm

https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-4m8r-87gc-3vvp

Release Notes x_refsource_misc

https://mailcow.email/posts/2024/release-2024-04

Exploit, Third Party Advisory x_refsource_misc

https://www.sonarsource.com/blog/remote-code-execution-in-mailcow-always-sanitize-error-messages

Scores

CVSS v3 6.2

EPSS 0.2735

EPSS Percentile 97.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-22

Status published

Products (1)

mailcow/mailcow\ < 2024-04

Published Apr 04, 2024

Tracked Since Feb 18, 2026