The Post Grid, Form Maker, Popup Maker, WooCommerce Blocks, Post Blocks, Post Carousel WordPress plugin before 2.2.76 does not have proper authorization, resulting in password protected posts to be displayed in the result of some unauthenticated AJAX actions, allowing unauthenticated users to read such posts

The plugin is vulnerable to PHP Object Injection in versions up to and including, 2.6.3 via deserialization of untrusted input in the import function via the 'shortcode' parameter. This allows authenticated attackers, with administrator-level access to inject a PHP Object. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

The Carousel, Slider, Gallery by WP Carousel – Image Carousel & Photo Gallery, Post Carousel & Post Grid, Product Carousel & Product Grid for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the carousel widget in all versions up to, and including, 2.6.3 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in PickPlugins Post Grid allows Reflected XSS.This issue affects Post Grid: from n/a through 2.2.74.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wpWax Post Grid, Slider & Carousel Ultimate allows Stored XSS.This issue affects Post Grid, Slider & Carousel Ultimate: from n/a through 1.6.6.

The Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.6.7 via deserialization of untrusted input in the outpost_shortcode_metabox_markup function. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

The Post Grid Combo – 36+ Gutenberg Blocks plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.2.68 via the 'get_posts' REST API Endpoint. This makes it possible for unauthenticated attackers to extract sensitive data including full draft posts and password protected posts, as well as the password for password-protected posts.

The Post Grid Combo – 36+ Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the custom JS parameter in all versions up to, and including, 2.2.64 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access or higher to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in PickPlugins Post Grid Combo – 36+ Gutenberg Blocks.This issue affects Post Grid Combo – 36+ Gutenberg Blocks: from n/a through 2.2.50.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in I Thirteen Web Solution Post Sliders & Post Grids plugin <= 1.0.20 versions.