CVE-2026-41235Froxlor has an authorization bypass in FTP shell assignment via missing server-side `available_shells` enforcement
Updated under an hour ago ()
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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 (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
- Weakness (CWE)
- CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Jun 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
froxlor froxlor froxlor:froxlor (from the name) | = 2.3.6 | CNA record |
References
- https://github.com/froxlor/froxlor/security/advisories/GHSA-gcv3-5v9q-fmhhx-refsource-confirm
- https://github.com/froxlor/froxlor/releases/tag/2.3.7x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.