CVE-2025-6626 MEDIUM

CVE-2025-6626: ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization <= 3.10.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via API URL

Vendor Shortpixel
Product ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization
Weakness CWE-79 · XSS
Published August 2, 2025
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

4.4/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the API URL Setting in all versions up to, and including, 3.10.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Key dates

02Disclosure timeline

August 2, 2025 CVE published
April 8, 2026 Record updated