The ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 6.5.5 via deserialization of untrusted input . This makes it possible for authenticated attackers, with author-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

Author PHP Object Injection in ShortPixel Image Optimizer <= 6.4.3 versions.

The ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the API URL Setting in all versions up to, and including, 3.10.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfilteredhtml has been disabled.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in ShortPixel ShortPixel Image Optimizer shortpixel-image-optimiser allows Blind SQL Injection.This issue affects ShortPixel Image Optimizer: from n/a through <= 5.6.3.

A vulnerability in ShortPixel ShortPixel Adaptive Images shortpixel-adaptive-images.This issue affects ShortPixel Adaptive Images: from n/a through <= 3.7.1.

Missing Authorization vulnerability in ShortPixel ShortPixel Image Optimizer shortpixel-image-optimiser allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects ShortPixel Image Optimizer: from n/a through <= 5.6.3.

Missing Authorization vulnerability in ShortPixel ShortPixel Adaptive Images shortpixel-adaptive-images.This issue affects ShortPixel Adaptive Images: from n/a through <= 3.8.2.

Plugin Settings Update vulnerability in ShortPixel's ShortPixel Adaptive Images plugin <= 3.3.1 at WordPress allows an attacker with a low user role like a subscriber or higher to change the plugin settings.

The Enable Media Replace plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the SHORTPIXELDEBUG parameter in all versions up to, and including, 4.1.4 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. Exploiting this vulnerability requires the attacker to know the ID of an attachment uploaded by the user they are attacking.

The ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'shortpixelajaxRequest' AJAX action in all versions up to, and including, 6.3.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to export and import site options.

The Enable Media Replace WordPress plugin before 4.1.3 unserializes user input via the Remove Background feature, which could allow Author+ users to perform PHP Object Injection when a suitable gadget is present on the blog

The Enable Media Replace WordPress plugin before 4.0.2 does not prevent authors from uploading arbitrary files to the site, which may allow them to upload PHP shells on affected sites.

The ShortPixel Adaptive Images WordPress plugin before 3.6.3 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against any high privilege users such as admin

The Enable Media Replace WordPress plugin before 4.0.0 does not ensure that renamed files are moved to the Upload folder, which could allow high privilege users such as admin to move them outside to the web root directory via a path traversal attack for example