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().
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_Mini
- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/Minify_Plug
- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/
- https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.9.4/lib/Minify/
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3585227%40w3-total-ca
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e92cc06d-006f-4bba-a4e
FAQ
What is CVE-2026-9282?
CVE-2026-9282 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 attac...
How severe is CVE-2026-9282?
CVE-2026-9282 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-9282?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.