Vulnerability in SiteOrigin CSS — CVE-2026-111122

What to do now

Update SiteOrigin CSS to 1.6.8 or later.

Affected versions

• Everything up to and including 1.6.7

The SiteOrigin CSS plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'href' parameter in all versions up to, and including, 1.6.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires the malicious comment to be approved and an administrator to subsequently open the Visual Inspector and click the attacker's anchor link, both of which are plausible interactions during routine comment triage.

This description is reproduced verbatim from the public vulnerability record.

• https://github.com/siteorigin/so-css/compare/1.6.7...1.6.8
• https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.7/js/inspector.js#L276
• https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.7/js/inspector.js#L280
• https://www.wordfence.com/threat-intel/vulnerabilities/id/97742c7c-4957-4597-9cc0-c9594e8c8482?source=cve

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.