Missing Authorization vulnerability in Creative Motion Auto Featured Image (Auto Post Thumbnail) allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Auto Featured Image (Auto Post Thumbnail): from n/a through 4.1.2.

The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

The Auto Featured Image from Title plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 2.3. 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.

The Auto Featured Image plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'create_post_attachment_from_url' function in all versions up to, and including, 1.2. This makes it possible for authenticated attackers, with contributor-level and above permissions, to upload arbitrary files on the affected site's server which may make remote code execution possible.

The Auto Featured Image (Auto Post Thumbnail) plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 4.0.0 via the upload_to_library AJAX action. This makes it possible for authenticated attackers, with author-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

Server-Side Request Forgery (SSRF) vulnerability in Creative Motion Auto Featured Image (Auto Post Thumbnail).This issue affects Auto Featured Image (Auto Post Thumbnail): from n/a through 4.0.0.

The Auto Featured Image (Auto Post Thumbnail) WordPress plugin before 3.9.16 includes an AJAX endpoint that allows any user with at least Author privileges to upload arbitrary files, such as PHP files. This is caused by incorrect file extension validation.

The Auto Featured Image (Auto Post Thumbnail) WordPress plugin before 3.9.3 does not sanitise and escape the post_id parameter before outputting back in an admin page within a JS block, leading to a Reflected Cross-Site Scripting issue.