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The The WP Popup Builder – Popup Forms and Marketing Lead Generation plugin for WordPress is vulnerable to arbitrary shortcode execution via the wp_ajax_nopriv_shortcode_Api_Add AJAX action in all versions up to, and including, 1.3.5. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes. NOTE: This vulnerability was partially fixed in version 1.3.5 with a nonce check, which effectively prevented access to the affected function. However, version 1.3.6 incorporates the correct authorization check to prevent unauthorized access.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Wp Popup Builder Plugin | — | Update wp-popup-builder plugin to version 1.3.6, or a newer patched version | May 15, 2025 | Oct 15, 2024 |
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