---
id: CVE-2026-9282
title: >-
  The W3 Total Cache plugin for WordPress is vulnerable to Directory Traversal
  in all versions up to, and including, 2.9.4 via the setupSources function
summary: >-
  The W3 Total Cache plugin for WordPress is vulnerable to Directory Traversal
  in all versions up to, and including, 2.9.4 via the setupSources function.
  This makes it possible for unauthenticated attackers to read the contents of
  arbitrar…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-22
published: '2026-07-11'
updated: '2026-07-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-9282'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_MinifiedFileRequestHandler.php#L191
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_Plugin.php#L132
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/Minify/Controller/MinApp.php#L109
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/Minify/Controller/MinApp.php#L163
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3585227%40w3-total-cache&new=3585227%40w3-total-cache
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/e92cc06d-006f-4bba-a4ef-b23d80c00085?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - exploit-available
epss: 0.02861
epssPercentile: 0.86156
ingestedAt: '2026-07-11T23:16:20.933Z'
exploits:
  nuclei:
    - CVE-2026-9282
  checkedAt: '2026-09-23T07:15:22.201Z'
exploitAvailable: true
---

## Overview

The W3 Total Cache plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.9.4 via the setupSources function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires enabling manual minify mode and supplying a manual-format minify filename so that the hash is empty and the f_array[] entries are not overwritten before reaching setupSources().

## Remediation

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