BaseFortify

Publication date: 2025-10-18

Last updated on: 2025-10-21

Assigner: Wordfence

Description

The ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'shortpixel_ajaxRequest' AJAX action in all versions up to, and including, 6.3.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to export and import site options.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-18

Last Modified

2025-10-21

Generated

2026-07-06

AI Q&A

2025-10-18

EPSS Evaluated

2026-07-05

NVD

CVE-2025-11378

Affected Vendors & Products

Vendor	Product	Version / Range
shortpixel	shortpixel_image_optimizer	6.3.4
shortpixel	shortpixel_image_optimizer	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the ShortPixel Image Optimizer plugin for WordPress, where a missing capability check on the 'shortpixel_ajaxRequest' AJAX action allows authenticated users with Contributor-level access or higher to modify data without proper authorization. Specifically, these users can export and import site options, which they should not normally be able to do.

Impact Analysis

The vulnerability can allow attackers with Contributor-level access or above to export and import site options, potentially leading to unauthorized changes in site configuration or data manipulation. This could compromise the integrity of the website's settings and functionality.

Mitigation Strategies

To mitigate this vulnerability, immediately update the ShortPixel Image Optimizer plugin to a version later than 6.3.4 where the missing capability check on the 'shortpixel_ajaxRequest' AJAX action is fixed. Additionally, restrict Contributor-level access and above to trusted users only until the update is applied.

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