What’s Vulnerable › Vulnerabilities
CVE-2025-25198: mailcow: dockerized vulnerable to password reset poisoning
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2025-02-12 · updated 2026-06-17
- Weakness: CWE-601
Description
mailcow: dockerized is an open source groupware/email suite based on docker. Prior to version 2025-01a, a vulnerability in mailcow's password reset functionality allows an attacker to manipulate the `Host HTTP` header to generate a password reset link pointing to an attacker-controlled domain. This can lead to account takeover if a user clicks the poisoned link. Version 2025-01a contains a patch. As a workaround, deactivate the password reset functionality by clearing `Notification email sender` and `Notification email subject` under System -> Configuration -> Options -> Password Settings.
Affected products
- mailcow-dockerized: before 2025-01a — fixed in 2025-01a
How to fix
Upgrade to a fixed version: mailcow-dockerized 2025-01a. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2025-25198 or the next vulnerability affects your stack