CVE-2026-90936 [MEDIUM] – Froxlor before 2.3.7 fails to properly scope sender alias lookups to the current customer

Froxlor before 2.3.7 fails to properly scope sender alias lookups to the current customer in customer_email.php. Authenticated attackers can enumerate global sender alias IDs and read other customers’ allowed sender values by supplying arbitrary senderid parameters in delete confirmation requests.