CVE-2024-9061
WP Popup Builder – Popup Forms and Marketing Lead Generation <= 1.3.5 - Unauthenticated Arbitrary Shortcode Execution via wp_ajax_nopriv_shortcode_Api_Add
- Published
- Oct 16, 2024
- Updated
- Apr 8, 2026
- Assigning CNA
- Wordfence
- Evidence observed
- Aug 5, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 98.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1WP Popup Builder – Popup Forms and Marketing Lead Generation <= 1.3.5 - Unauthenticated Arbitrary Shortcode Execution via wp_ajax_nopriv_shortcode_Api_Add
Responsible use
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