Blocksy Companion, CVE-2025-9565

CVE, Research URL: CVE-2025-9565
Home page URL: Security reports for Blocksy Companion
Application: Blocksy Companion
Published on: Sep 17, 2025
Research Description: The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's blocksy_newsletter_subscribe shortcode in all versions up to, and including, 2.1.10 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected versions: max 2.1.11.
Status: vulnerable