Unauthorized Data Modification in the Converter for Media Plugin by WordPress
CVE-2025-13750

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Converter For Media – Optimize Images | Convert Webp & Avif
Vendor
CVE Published:
17 December 2025

What is CVE-2025-13750?

The Converter for Media – Optimize images | Convert WebP & AVIF plugin for WordPress is susceptible to unauthorized data modification due to a lack of capability checks on the /webp-converter/v1/regenerate-attachment REST endpoint. This flaw permits authenticated users with Subscriber-level access and higher to delete optimized WebP and AVIF variants of attachments, posing significant security risks for WordPress sites utilizing this plugin version 6.3.2 and earlier.

Affected Version(s)

Converter for Media – Optimize images | Convert WebP & AVIF * <= 6.3.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3414745/webp...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marcin Dudek
JSON
.
CVE-2025-13750 : Unauthorized Data Modification in the Converter for Media Plugin by WordPress