CVE Catalog

CVE-2026-41236

HighCVSS 8.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.37%

29th percentile - higher than 29% of all known CVEs

Summary

Froxlor version 2.3.6 contains a symlink-following flaw in the root-owned SSH key synchronization path used for customer FTP users. An attacker with shell access can replace authorized_keys with a symlink to /root/.ssh/authorized_keys, enabling root SSH access.

Risk Assessment

An attacker can gain full root access to the system, leading to complete server compromise.

Recommendation

Immediately update Froxlor to version 2.3.7, which contains the fix.

Other vulnerabilities in Froxlor

See all
Original NVD description (English source)

Froxlor is open source server administration software. Version 2.3.6 contains a symlink-following flaw in the root-owned SSH key synchronization path used for customer FTP users. The provisioning code appends public keys to `~/.ssh/authorized_keys` under a customer-controlled home directory without verifying that the target path is not a symbolic link. If an attacker controls a shell-enabled customer account and can modify files inside the assigned home directory, the attacker can replace `~/.ssh/authorized_keys` with a symlink to `/root/.ssh/authorized_keys`. When Froxlor's privileged cron task later synchronizes SSH keys, it appends the attacker-supplied key into root's authorized key file, resulting in root SSH access. Version 2.3.7 contains a patch.

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