The Popup with fancybox plugin for WordPress is vulnerable to SQL Injection via the plugin's shortcode in versions up to, and including, 3.5 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers with subscriber-level and above permissions to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The Popup box WordPress plugin before 3.7.9 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed.

The WP Post Popup WordPress plugin through 3.7.3 does not sanitise and escape some of its inputs, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Cross-Site Request Forgery (CSRF) vulnerability in CRUDLab Jazz Popups leads to Stored XSS.This issue affects Jazz Popups: from n/a through 1.8.7.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Om Ak Solutions Slick Popup: Contact Form 7 Popup Plugin plugin <= 1.7.14 versions.

The Popup box WordPress plugin before 3.7.2 does not sanitize and escape some Popup fields, which could allow high-privilege users such as an administrator to inject arbitrary web scripts even when the unfiltered_html capability is disallowed (for example in a multisite setup).

The Poptin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'poptin-form' shortcode in versions up to, and including, 1.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

In the module "Creative Popup" (creativepopup) up to version 1.6.9 from WebshopWorks for PrestaShop, a guest can perform SQL injection via `cp_download_popup().`

Cross-Site Request Forgery (CSRF) vulnerability in Gopi Ramasamy WP tell a friend popup form plugin <= 7.1 versions.

Cross-Site Request Forgery (CSRF) vulnerability in OptiMonk OptiMonk: Popups, Personalization & A/B Testing plugin <= 2.0.4 versions.