Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

The WP Media Optimizer (.webp) plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘wpmowebp-css-resources’ and 'wpmowebp-js-resources' parameters in all versions up to, and including, 1.4.0 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 WebP & SVG Support WordPress plugin through 1.4.0 does not sanitise uploaded SVG files, which could allow users with a role as low as Author to upload a malicious SVG containing XSS payloads.

The Smush plugin for WordPress is vulnerable to unauthorized deletion of the resmush list due to a missing capability check on the delete_resmush_list() function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to delete the resmush list for Nextgen or the Media Library.

The Image Optimization by Optimole – Lazy Load, CDN, Convert WebP & AVIF plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘allow_meme_types’ function in versions up to, and including, 3.12.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Uploading SVG, WEBP and ICO files WordPress plugin through 1.2.1 does not sanitise uploaded SVG files, which could allow users with a role as low as Author to upload a malicious SVG containing XSS payloads.

The CITS Support svg, webp Media and TTF,OTF File Upload WordPress plugin before 3.0 does not sanitise uploaded SVG files, which could allow users with a role as low as Author to upload a malicious SVG containing XSS payloads.

The Enable SVG, WebP & ICO Upload WordPress plugin through 1.0.3 does not sanitize SVG file contents, leading to a Cross-Site Scripting vulnerability.

There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.

Authenticated Arbitrary File Upload vulnerability in dmitrylitvinov Uploading SVG, WEBP and ICO files plugin <= 1.0.1 at WordPress.