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wordfence / plugin · webp-converter-for-media
Converter for Media – Optimize images | Convert WebP & AVIF
webp-converter-for-media
total installs
500,000
total vulns
2
critical
0
high
0
medium
2
low
0
latest vuln
—
patched
2
unpatched
0
avg time to patch
—
vulnerabilities
(2)
Converter for Media – Optimize images | Convert WebP & AVIF <= 6.5.1 - Unauthenticated Server-Side Request Forgery via src
medium
✓ patched
cve id
CVE-2026-1356 ↗
cvss score
4.8
cwe
CWE-918: Server-Side Request Forgery (SSRF)
published
Feb 11, 2026
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.
Converter for Media <= 6.3.2 - Missing Authorization to Authenticated (Subscriber+) Optimized Image Deletion via regenerate-attachment REST Endpoint
medium
✓ patched
The Converter for Media – Optimize images | Convert WebP & AVIF plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `/webp-converter/v1/regenerate-attachment` REST endpoint in all versions up to, and including, 6.3.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete optimized WebP/AVIF variants for arbitrary attachments.