CVE-2026-100715 Froxlor before 2.3.12 Arbitrary File Deletion via Symlink
Authenticated users can delete arbitrary files via symlink attacks in the FTP deletion cron job, causing data loss and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100715?
CVE-2026-100715 is a high-severity path traversal vulnerability in froxlor, published on 26 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Froxlor through 2.3.10 is vulnerable to arbitrary file deletion via symlink following in the FTP data deletion cron task. Cron task 8 (deleteFtpData), queued when an FTP account is deleted, calls FileDir::makeCorrectDir() without the $fixed_homedir argument, so the symlink component walk is skipped, and then executes 'rm -rf' as root on the resulting path with string-level guards only. Because makeCorrectDir() appends a trailing slash, GNU rm dereferences a symlink used either as an intermediate path component or as the final component. An authenticated customer who can write to the FTP home directory can plant a symlink between task insertion and cron execution, causing the root cron job to recursively delete arbitrary directory trees, resulting in cross-tenant data destruction and host denial of service. This issue is fixed in Froxlor 2.3.12.
Weakness: CWE-59
Which versions are affected by CVE-2026-100715?
How do I fix CVE-2026-100715?
No fix has been published for CVE-2026-100715 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-100715 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100715 exists.
Sources
Also known as GHSA-px4q-2rf7-cvcf, GHSA-x2f4-5vf2-hf4j.