CVE-2026-1356CWE-918

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

Medium · published February 12, 2026

CVSS v3.1
4.8
EPSS
0%
Percentile
16.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00258 · 16.6th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-02-12T09:25Z
EPSS history
Timeline
  • 12 FEB 09:25Z
    Converter for Media – Optimize images | Convert WebP & AVIF <= 6.5.1 - Unauthenticated Server-Side Request Forgery via src
    cvelistv5