The WordPress Review & Structure Data Schema Plugin – Review Schema plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the rtrs_review_edit() function in all versions up to, and including, 2.1.14. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify arbitrary reviews.

Cross-Site Request Forgery (CSRF) vulnerability in Brainstorm Force US LLC Schema Pro allows Cross Site Request Forgery.This issue affects Schema Pro: from n/a through 2.7.7.

The Remove Schema plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.5. This is due to missing or incorrect nonce validation on the validate() function. This makes it possible for unauthenticated attackers to modify the plugins settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Cross-Site Request Forgery (CSRF) vulnerability in Brainstorm Force Schema – All In One Schema Rich Snippets plugin <= 1.6.5 versions.

The schema (aka Embedding schema.org vocabulary) extension before 1.13.1 and 2.x before 2.5.1 for TYPO3 allows XSS.

The Five Star Business Profile and Schema WordPress plugin before 2.1.7 does not have any authorisation and CSRF in its bpfwp_welcome_add_contact_page and bpfwp_welcome_set_contact_information AJAX action, allowing any authenticated users, such as subscribers, to call them. Furthermore, due to the lack of sanitisation, it also lead to Stored Cross-Site Scripting issues

json-schema is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Schema-Inspector is an open-source tool to sanitize and validate JS objects (npm package schema-inspector). In before version 2.0.0, email address validation is vulnerable to a denial-of-service attack where some input (for example `a@0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.`) will freeze the program or web browser page executing the code. This affects any current schema-inspector users using any version to validate email addresses. Users who do not do email validation, and instead do other types of validation (like string min or max length, etc), are not affected. Users should upgrade to version 2.0.0, which uses a regex expression that isn't vulnerable to ReDoS.

This affects the package simpl-schema before 1.10.2.

The all-in-one-schemaorg-rich-snippets plugin before 1.5.0 for WordPress has XSS on the settings page.