CVE-2026-41235
CVE-2026-41235 · Froxlor has an authorization bypass in FTP shell assignment via missing server-side `available_shells` enforcement
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Froxlor is open source server administration software. Version 2.3.6 lets administrators configure `system.available_shells` as the approved shell list that customers may assign to FTP users. However, the server-side FTP account handlers do not enforce that whitelist when processing add or edit requests. As a result, an authenticated customer with shell delegation enabled can submit an arbitrary shell such as `/bin/bash` even when the panel UI only offers more restricted choices. In deployments that use the default `nssextrausers` integration, the attacker-controlled shell is then propagated into the system account database, leading to real host shell access. Version 2.3.7 fixes the issue.
CVSS 8.6 · High · EPSS 0.4% · Fix available
- Published
- Updated
Stack: php
Affected products and versions
froxlor
- Versions
- = 2.3.6: Affected
No fix published
froxlor/froxlor Packagist
- Versions
- 2.3.6
- Affected ranges
- ECOSYSTEM: ≥ 2.3.6, < 2.3.7
Update to 2.3.7