CVE-2026-40875
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-79
Neutralización incorrecta de la entrada durante la generación de la página web (Cross-site Scripting)
Fecha de publicación:
21/04/2026
Última modificación:
21/04/2026
Descripción
*** Pendiente de traducción *** 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.
Impacto
Puntuación base 4.0
7.00
Gravedad 4.0
ALTA



