CVE-2026-41232

Froxlor is open source server administration software. Prior to version 2.3.6, in `EmailSender::add()`, the domain ownership validation for full email sender aliases uses the wrong array index when splitting the email address, passing the local part instead of the domain to `validateLocalDomainOwnership()`. This causes the ownership check to always pass for non-existent "domains," allowing any authenticated customer to add sender aliases for email addresses on domains belonging to other customers. Postfix's `sender_login_maps` then authorizes the attacker to send emails as those addresses. Version 2.3.6 fixes the issue.

Affected products

Froxlor

Froxlor

< 2.3.6

Fix

Available

CVSS 3.1

5.0 MEDIUM

EPSS

0.2% (14th percentile)

Weakness

CWE-863

NVD status

Analyzed

Published

2026-04-23

No exploit for CVE-2026-41232 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.