The PDF Flipbook, 3D Flipbook—DearFlip plugin for WordPress is vulnerable to Stored Cross-Site Scripting via outline settings in all versions up to 2.3.52 due to insufficient input sanitization and output escaping on user-supplied data. 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.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Andy Fragen Embed PDF Viewer allows Stored XSS.This issue affects Embed PDF Viewer: from n/a through 2.3.1.

The PDF Flipbook, 3D Flipbook, PDF embed, PDF viewer – DearFlip plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'pdf_source' parameter in all versions up to, and including, 2.3.32 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.

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 Embed PDF Viewer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'height' and 'width' parameters in all versions up to, and including, 2.4.4 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.