Description (CNA)
mailcow: dockerized is an open source groupware/email suite based on docker. In versions prior to 2026-03b, the user dashboard's "Seen successful connections" (login history) renders the client IP from login logs without HTML escaping. Because the server trusts the X-Real-IP header as the source IP for logging, an attacker can inject HTML/JS into this field. This Self-XSS can be exploited by a Login CSRF to force the victim into the attacker's account, and then read emails in a previous browser tab. Version 2026-03b fixes the vulnerability.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| mailcow / mailcow-dockerized | affected < 2026-03b |
CWE
CWE-79, CWE-80
References
ADP enrichment
No English description supplied.