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.

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Deploy the Patch

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
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