CVE-2025-11519 MEDIUM

CVE-2025-11519: Image optimization service by Optimole <= 4.1.0 - Insecure Direct Object Reference to Authenticated (Author+) Media Offload

Vendor Optimole
Product Optimole – Optimize Images in Real Time
Weakness CWE-639 · IDOR
Published October 18, 2025
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

Optimole – Optimize Images in Real Time versions 4.1.0 and earlier contain an authorization flaw that allows authenticated users to modify data they should not have access to. The vulnerability requires a valid user account but no special privileges. An attacker with low-level access can alter image optimization settings or related configuration affecting site integrity.

What an attacker can do

03Attacker Capabilities

Modify image optimization settings or data without proper authorization.

Potential impact on your site

04Site Impact

Unauthorized changes to image optimization configuration could degrade site performance or alter intended image delivery behavior.

Conditions required to exploit

05Prerequisites

Attacker must have a valid user account with low-level privileges on the site.

Key dates

06Disclosure timeline

October 18, 2025 CVE published
April 8, 2026 Record updated