Unauthenticated Sensitive Data Exposure in EmbedPress <= 4.5.2 versions.

The EmbedPress WordPress plugin before 4.6.7 does not escape one of its block attributes before outputting it inside an HTML attribute, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks against higher privileged users viewing the post.

The EmbedPress – Embed PDF, 3D Flipbook, Social Feeds, Google Docs, Vimeo, Wistia, YouTube Videos, Audios, Google Maps in Gutenberg Block & Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘providername parameter in all versions up to, and including, 4.1.3 due to insufficient input sanitization and output escaping. 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.

The EmbedPress – PDF Embedder, Embed PDF viewer, YouTube Videos, 3D FlipBook, Social feeds & more plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the block 'url' attribute in all versions up to, and including, 4.5.3 due to insufficient input sanitization and output escaping. 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

The EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'unique' parameter in all versions up to, and including, 4.6.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. This is a regression: the escurl() wrapper that remediated the equivalent CVE-2023-5749 in version 3.9.2 was removed in version 4.3.0 during a refactor that introduced the 'unique' parameter.

The EmbedPress WordPress plugin before 4.6.1 does not validate user-supplied URLs before making server-side requests through unauthenticated endpoints, allowing unauthenticated attackers to induce the site to send HTTP requests to internal hosts and services that WordPress core URL validation does not cover (a blind Server-Side Request Forgery).

The EmbedPress WordPress plugin before 4.6.4 does not have proper authorization on a public review-loading action, allowing unauthenticated users to force the site to make repeated billable third-party API requests using the site's own configured API key, and to create an unbounded number of attacker-controlled rows in the database.

The EmbedPress WordPress plugin before 4.6.4 does not correctly restrict access to one of its Google Reviews REST routes to administrators, allowing any authenticated user with contributor-level access or above to read the site administrator's email address, a value WordPress core withholds from that role.