CVE-2026-12430

Description

The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.1.45 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-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.

References

• https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.41/framework/extensions/product-reviews/extension.php#L709
• https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.41/framework/extensions/product-reviews/views/single-top.php#L206
• https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.41/framework/extensions/product-reviews/views/single-top.php#L232
• https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.45/framework/extensions/product-reviews/extension.php#L709
• https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.45/framework/extensions/product-reviews/views/single-top.php#L206