WP 404 Auto Redirect to Similar Post, CVE-2025-12037

CVE, Research URL: CVE-2025-12037
Home page URL: Security reports for WP 404 Auto Redirect to Similar Post
Application: WP 404 Auto Redirect to Similar Post
Published on: Feb 18, 2026
Research Description: The WP 404 Auto Redirect to Similar Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Affected versions: max 1.0.6.
Status: vulnerable