Vulnerability · Published Sep 26, 2026 · Assigned by VulnCheck

CVE-2026-100715Froxlor before 2.3.12 Arbitrary File Deletion via Symlink

Critical 9.6

In plain English

A critical-severity security flaw in froxlor from froxlor. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)9.6Critical

Exploit odds (30 days)0.5%top 60.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
froxlor	froxlor	0 – before 2.3.12

Weakness: CWE-59 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

References

GitHub Security Advisory (GHSA-px4q-2rf7-cvcf) vendor-advisory
VulnCheck Advisory: Froxlor before 2.3.12 Arbitrary File Deletion via Symlink third-party-advisory