---
id: CVE-2026-100716
title: Froxlor is a server administration panel
summary: >-
  Froxlor is a server administration panel. In versions 2.3.10 and earlier, the
  customer data-export (DataDump) cron fails to validate intermediate path
  components of the export destination: Froxlor\FileDir::makeCorrectDir()
  contains an of…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-59
vendor: froxlor
product: froxlor
affected:
  - froxlor < 2.3.12
published: '2026-09-26'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T14:16:57.707'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100716'
references:
  - url: 'https://github.com/froxlor/froxlor/security/advisories/GHSA-2wjc-6mgx-hq42'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/froxlor-before-2.3.12-privilege-escalation-via-symlink
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-26T13:33:20.894Z'
---

## Overview

Froxlor is a server administration panel. In versions 2.3.10 and earlier, the customer data-export (DataDump) cron fails to validate intermediate path components of the export destination: Froxlor\FileDir::makeCorrectDir() contains an off-by-one in its path-component walk that skips the first segment below the customer home directory, and the guard in ExportCron.php checks only the final component with is_link(). An authenticated customer whose account has the export feature enabled can schedule an export into a genuine subdirectory of their own webspace, then replace an intermediate path component with a symlink before the root-owned cron runs. The cron's `chown -R` then recursively changes ownership of the linked directory tree — for example /etc — to the customer's UID, yielding host root and cross-tenant compromise. Exploitation is deterministic and requires no race. This is an incomplete fix of GHSA-75h4-... The issue is fixed in Froxlor 2.3.12.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.