CVE-2026-12430

Name of the Vulnerable Software and Affected Versions Blocksy Companion versions prior to 2.1.46

Description The Blocksy Companion plugin for WordPress contains a Stored Cross-Site Scripting issue within the admin settings caused by insufficient input sanitization and output escaping. This allows authenticated attackers with editor-level permissions or higher to inject arbitrary web scripts into pages. These scripts execute when a user accesses the affected page. This issue specifically impacts multi-site installations and environments where unfiltered html has been disabled.

Recommendations Update to a version later than 2.1.45.