The SpeedSize Image & Video AI-Optimizer plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.5.1. This is due to missing or incorrect nonce validation on the 'speedsize_clear_css_cache_action' function. This makes it possible for unauthenticated attackers to clear the plugins cache via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Zach Swetz Plugin A/B Image Optimizer allows Path Traversal. This issue affects Plugin A/B Image Optimizer: from n/a through 3.3.

Missing Authorization vulnerability in Karim Salman Kraken.io Image Optimizer allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Kraken.io Image Optimizer: from n/a through 2.6.7.

Missing Authorization vulnerability in ShortPixel – Convert WebP/AVIF & Optimize Images ShortPixel Image Optimizer 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 Creative Motion Robin image optimizer allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Robin image optimizer: from n/a through 1.6.9.

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

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 Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 7.2.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WP Compress WP Compress – Image Optimizer [All-In-One] allows Reflected XSS.This issue affects WP Compress – Image Optimizer [All-In-One]: from n/a through 6.20.13.

The Image Optimizer, Resizer and CDN – Sirv plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the sirv_upload_file_by_chanks AJAX action in all versions up to, and including, 7.2.6. This makes it possible for authenticated attackers, with Contributor-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.