Vulnerability Description
The Automatic.css plugin for WordPress is vulnerable to Stored Cross-Site Scripting via REQUEST_URI in all version 4.0.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that will execute whenever an administrator accesses the Activity Log settings page.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://automaticcss.com/changelogs/
- https://plugins.trac.wordpress.org/browser/automaticcss-plugin/trunk/classes/Hel
- https://plugins.trac.wordpress.org/browser/automaticcss-plugin/trunk/classes/Lib
- https://plugins.trac.wordpress.org/browser/automaticcss-plugin/trunk/classes/Plu
- https://plugins.trac.wordpress.org/browser/automaticcss-plugin/trunk/classes/UI/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/07d697c5-1c15-4d3a-863
FAQ
What is CVE-2026-15273?
CVE-2026-15273 is a vulnerability with a CVSS score of 6.4 (MEDIUM). The Automatic.css plugin for WordPress is vulnerable to Stored Cross-Site Scripting via REQUEST_URI in all version 4.0.0 due to insufficient input sanitization and output escaping. This makes it possi...
How severe is CVE-2026-15273?
CVE-2026-15273 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-15273?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.