CVE-2026-100718 - Froxlor before 2.3.12 Authentication Bypass via EmailSender.add
Brief
CVE ID : CVE-2026-100718
Published : Sept. 26, 2026, 2:16 p. m.
- 6 hours, 44 minutes ago
Description : Froxlor through 2.
- 10 does not enforce the mail. allow_external_domains policy in the EmailSender. add API command. When an administrator has enabled the allowed-sender feature but disabled external allowed-sender domains (mail. enable_allow_sender = 1, mail. allow_external_domains = 0), an authenticated customer with API access can still use EmailSender.
add to register an arbitrary external sender address for their mailbox, which is stored despite the policy. This creates a bypass between the UI/administrator configuration and the API, and — where the generated mail configuration consumes the allowed-sender table — allows a customer to authorize sender identities outside their hosted domains, facilitating sender spoofing. Fixed in 2.
- 12.