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CVE-2026-1356

MEDIUM 4.8 CVSS 3.1
Published
February 12, 2026
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-918
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

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 WordPress components

  • Converter for Media – Optimize images | Convert WebP & AVIF Plugin · webp-converter-for-media
    Confirmed match Active
    Up to and including 6.5.1
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • mateuszgbiorczyk Converter for Media – Optimize images | Convert WebP & AVIF — Up to and including 6.5.1

References