SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2024-30270

A security vulnerability has been identified in mailcow affecting versions prior to 2024-04.

MEDIUM 6.2EPSS 27.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 27.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.1
6.2 MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L
EPSS
27.35% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-22
Affected
mailcow/mailcow\
Source
security-advisories@github.com
EPSS trend
0%15%30%3 November 2026: 27.35%3 November 20263 November 2026

EPSS 27.3% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.