CVE-2026-41235
Description
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.
How to fix
- froxlor/froxlor2.3.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| froxlor/froxlorPackagist | 2.3.6 ≤ v < 2.3.7 | 2.3.7 |
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