Image optimization service by Optimole <= 4.1.0 - Insecure Direct Object Reference to Authenticated (Author+) Media Offload

2025-10-17 18:03

Dmitrii Ignatyev

Strategic Overview

Status

Patched in 4.1.1

Affected PluginOptimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization

Affected Version<= 4.1.0

CVSS4.3Medium

CVECVE-2025-11519

View all Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization vulnerabilities

Vulnerability Overview

The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.1.0 via the /wp-json/optml/v1/move_image REST API endpoint due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Author-level access and above, to offload media that doesn't belong to them.

Technical Analysis

REMEDIATION: Update to version 4.1.1, or a newer patched version --- IDENTIFIER: CWE-639 (Authorization Bypass Through User-Controlled Key) The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

External References

https://www.cve.org/CVERecord?id=CVE-2025-11519 https://www.wordfence.com/threat-intel/vulnerabilities/id/9288ed60-b14b-4188-84d4-efe770093551

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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