CVE-2025-53909 mailcow: dockerized vulnerable to SSTI in Quota and Quarantine Notification Template

mailcow: dockerized is an open source groupware/email suite based on docker. A Server-Side Template Injection SSTI vulnerability exists in versions prior to 2025-07 in the notification template system used by mailcow for sending quota and quarantine alerts. The template rendering engine allows...

CVE-2025-53909

CVE-2025-53909 affects mailcow: dockerized. A Server-Side Template Injection (SSTI) exists in the quota/quarantine notification template rendering system, allowing template expressions to be abused to execute code in certain contexts. The issue requires admin-level access to configure templates, ...

PT-2025-29910 · Mailcow · Mailcow

Name of the Vulnerable Software and Affected Versions: mailcow: dockerized versions prior to 2025-07 Description: A Server-Side Template Injection SSTI vulnerability exists in the notification template system used for sending quota and quarantine alerts. The template rendering engine allows...