Vulnerability Description
The SpeedyCache plugin for WordPress is vulnerable to Arbitrary File Read via Path Traversal in all versions up to, and including, 1.3.8. This is due to a mismatch between CSS URL validation (which allows query strings like `.css?...`) and path resolution (which strips query strings), combined with no validation that the resolved file is actually a CSS file. This makes it possible for authenticated attackers, with Administrator-level access and above, to read arbitrary files from the server (including `wp-config.php` and `/etc/passwd`) by injecting crafted `<link>` tags into page content, with the file contents written to publicly accessible cache files.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/speedycache/tags/1.3.7/main/css.php#L
- https://plugins.trac.wordpress.org/browser/speedycache/tags/1.3.7/main/util.php#
- https://www.wordfence.com/threat-intel/vulnerabilities/id/cfefcc38-764d-4dd9-b09
FAQ
What is CVE-2026-5114?
CVE-2026-5114 is a vulnerability with a CVSS score of 4.9 (MEDIUM). The SpeedyCache plugin for WordPress is vulnerable to Arbitrary File Read via Path Traversal in all versions up to, and including, 1.3.8. This is due to a mismatch between CSS URL validation (which al...
How severe is CVE-2026-5114?
CVE-2026-5114 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-5114?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.