CVE Catalog

CVE-2026-41235

HighCVSS 8.6
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

14th percentile - higher than 14% of all known CVEs

Summary

Froxlor 2.3.6 does not enforce the approved shell list for FTP accounts. An authenticated customer with shell delegation can set an arbitrary shell like /bin/bash, which in the default nssextrausers integration leads to real host shell access.

Risk Assessment

An attacker can gain full OS shell access, leading to privilege escalation and server compromise.

Recommendation

Update Froxlor to version 2.3.7 which fixes the issue.

Other vulnerabilities in Froxlor

See all
Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS