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TI-2025-18867 Aliases CVE-2025-25198

mailcow: dockerized vulnerable to password reset poisoning

Priority MEDIUM 40CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-601.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01121 66th percentileScored 2026-11-07
Fix Fixed mailcow-dockerized (mailcow): 2025-01a

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
mailcowmailcow-dockerizedbefore 2025-01a2025-01aPatch availableCNA
  • mailcow-dockerized Vendormailcow Affected before 2025-01a Fixed in 2025-01a Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mailcow:mailcow\:_dockerized:*:*:*:*:*:*:*:*_dockerizedVulnerablemailcow
  • cpe:2.3:a:mailcow:mailcow\:_dockerized:*:*:*:*:*:*:*:* Versions _dockerized Vulnerable ·mailcow

Remediation

  • Fix · CNA mailcow-dockerized (mailcow) Fixed in 2025-01a

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-25198

References

Advisory 1

  • TI-2022-13182 OS Command Injection in mailcow CVSS 3.1HIGH 8.8
  • TI-2022-18634 mailcow-dockerized critical information misrepresentation can lead to phishing attacks through Swagger UI CVSS 3.1HIGH 8.2
  • TI-2024-15818 mailcow ipixel flood attack leads to Denial of Service in admin page CVSS 3.1MEDIUM 4.7
  • TI-2024-20015 mailcow Path Traversal and Arbitrary Code Execution Vulnerability CVSS 3.1MEDIUM 6.2
  • TI-2023-11637 mailcow is vulnerable to shell command injection via xoauth2 authentication in imapsync​ CVSS 3.1HIGH 8.8
  • TI-2022-13278 mailcow before 2022-05d allows a remote authenticated user to inject OS commands and… CVSS 3.1HIGH 8.8
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences