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OpenAdvisories
Medium · 4.8 CVE-2026-1356 EUVD-2026-7040GHSA-cj74-j73p-qf3x

Converter for Media – Optimize images | Convert WebP & AVIF <= 6.5.1 - Unauthenticated Server-Side Request Forgery via src

Published Feb 12, 2026 · Updated Apr 8, 2026 · Assigned by Wordfence

Description

The Converter for Media – Optimize images | Convert WebP & AVIF plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 6.5.1 via the PassthruLoader::load_image_source function. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.

Affected products

VendorProductAffectedFixed
mateuszgbiorczyk Converter for Media – Optimize images | Convert WebP & AVIF ≤ 6.5.1 —

References