CVE-2026-9282

Published: July 11, 2026•Last Modified: July 11, 2026

CVSS SCORE

7.5

HIGH

Vulnerability Description

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().

Affected Products & Versions

No configurations parsed from local entry.

Security Advisories & References

Mitigation & Remediation

Update the affected packages to a secure version. Refer to vendor security advisories.

Share Advisory

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# HIGH - CVE-2026-9282 ## EFFECT 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(). ## AFFECTED Unknown products ## LINKS - [plugins.trac.wordpress.org](https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_MinifiedFileRequestHandler.php#L191) - [plugins.trac.wordpress.org](https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_Plugin.php#L132) - [plugins.trac.wordpress.org](https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/Minify/Controller/MinApp.php#L109) - [plugins.trac.wordpress.org](https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/Minify/Controller/MinApp.php#L163) - [plugins.trac.wordpress.org](https://plugins.trac.wordpress.org/changeset?reponame=&old=3585227%40w3-total-cache&new=3585227%40w3-total-cache) - [www.wordfence.com](https://www.wordfence.com/threat-intel/vulnerabilities/id/e92cc06d-006f-4bba-a4ef-b23d80c00085?source=cve) ## SOLUTION - Update the affected packages to a secure version. Refer to vendor security advisories.