Link following in Froxlor - CVE-2026-100716
Published: September 7, 2026 / Updated: September 28, 2026
Vulnerability identifier: #VU147275
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-100716
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to gain ownership of arbitrary root-owned directory trees.
The vulnerability exists due to improper link resolution before file access in the DataDump export cron when processing scheduled export destinations containing intermediate symlinks. A remote user can replace an intermediate export destination path component with a symlink to cause the root cron to recursively change ownership of an arbitrary directory tree.
The export feature must be enabled. Exploitation is deterministic and does not require a race condition.
Affected software
Froxlor
How to mitigate CVE-2026-100716
Install security update from vendor's website.
Froxlor - update to 2.3.12