Converter for Media <= 6.3.2 - Missing Authorization to Authenticated (Subscriber+) Optimized Image Deletion via regenerate-attachment REST Endpoint

2025-12-16 18:33

Marcin Dudek (dudekmar)

Strategic Overview

Status

Patched in 6.4.0

Affected PluginConverter for Media – Optimize images | Convert WebP & AVIF

Affected Version<= 6.3.2

CVSS4.3Medium

CVECVE-2025-13750

View all Converter for Media – Optimize images | Convert WebP & AVIF vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 6.4.0, or a newer patched version --- IDENTIFIER: CWE-862 (Missing Authorization) The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

External References

https://www.cve.org/CVERecord?id=CVE-2025-13750 https://www.wordfence.com/threat-intel/vulnerabilities/id/9a31190f-e2ed-46ee-a224-85a0a003738d

CVSS Vector

4.3

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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