CVE-2026-3480
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
The WP Blockade plugin for WordPress up to version 0.9.14 lacks authorization in the render_shortcode_preview() function, allowing any authenticated user to execute arbitrary WordPress shortcodes.
Risk Assessment
An authenticated attacker with Subscriber-level access or higher can execute arbitrary shortcodes, potentially leading to information disclosure, privilege escalation, or other impacts.
Recommendation
Update the WP Blockade plugin to the latest patched version.
Original NVD description (English source)
The WP Blockade plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 0.9.14. The plugin registers an admin_post action hook 'wp-blockade-shortcode-render' that maps to the render_shortcode_preview() function. This function lacks any capability check (current_user_can()) and nonce verification, allowing any authenticated user to execute arbitrary WordPress shortcodes. The function takes a user-supplied 'shortcode' parameter from $_GET, passes it through stripslashes(), and directly executes it via do_shortcode(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute arbitrary shortcodes, which could lead to information disclosure, privilege escalation, or other impacts depending on what shortcodes are registered on the site (e.g., shortcodes from other plugins that display sensitive data, perform actions, or include files).