CVE-2025-11857: Mxp XX2WP Integration Tools

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The XX2WP Integration Tools plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'mxp_fb2wp_display_embed' shortcode in all versions up to, and including, 1.9.9. This is due to the plugin not properly sanitizing user input and output of the 'post_id' parameter. 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 products

• Mxp XX2WP Integration Tools: up to and including 1.9.9

Published 2025-10-18. Last modified 2026-10-09.