CVE 8.8 HIGH

Froxlor has privilege escalation in SSH key synchronization via symlinked `authorized_keys` path_CVE-2026-41236

8.8 / 10
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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.

AI Analysis

Symlink-following flaw in SSH key synchronization path allowing privilege escalation via root SSH access

Basic Information

ID CVE-2026-41236
Source GitHub_M
Published Jun 4, 2026 at 17:52

Affected Product

Vendor froxlor
Product froxlor
Version = 2.3.6
Affected Versions froxlor froxlor = 2.3.6

CWE Classification

AI Assessment

AI Score 8.8 / 10
AI Severity High
Vendor Froxlor
Product Froxlor
Version 2.3.6

References

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