Stored Cross-Site Scripting Vulnerability in Automatic.css Plugin for WordPress
CVE-2026-15273

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Automatic.css
Vendor
CVE Published:
26 September 2026

What is CVE-2026-15273?

The Automatic.css plugin for WordPress allows for Stored Cross-Site Scripting due to inadequate sanitization of user inputs and improper escaping of outputs. An attacker can exploit this vulnerability by injecting malicious scripts via REQUEST_URI, which would execute when an administrator accesses the Activity Log settings page. This poses a significant risk as it could lead to unauthorized access and manipulation, making it crucial for users to apply necessary security patches.

Affected Version(s)

Automatic.css 4.0.0

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/automaticcss-p...
https://plugins.trac.wordpress.org/browser/automaticcss-p...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nguyen Ngoc Duc (duc193)
.