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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2025-6626
CVSS Medium (4.4)
Publicly Published August 1, 2025
Last Updated August 2, 2025
Researcher Jonas Benjamin Friedli
Description

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.

References

1 affected software package

Software Type Plugin
Software Slug shortpixel-adaptive-images (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.10.4
Patched Version
  • 3.10.5
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