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5.4
CVE-2025-11378: ShortPixel plugin lets contributors change site settings
CVE-2025-11378 · published 1 year ago
Summary
The ShortPixel Image Optimizer plugin for WordPress allows users with Contributor or higher accounts to export and import site options without proper permission checks. This could let an insider alter configuration settings they shouldn't control. Update the plugin to the latest version or restrict contributor access to prevent this.
Original advisory text
ShortPixel Image Optimizer <= 6.3.4 - Authenticated (Contributor+) Settings Import/Export
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.
References
- https://research.cleantalk.org/CVE-2025-11378 URL
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old... URL
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1f7e9eb5-e222-43fa-a14... URL
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/11xxx/CVE-2025-11378... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-11378 Vendor Advisory
- https://github.com/short-pixel-optimizer/shortpixel-image-optimiser/commit/74263... Patch
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Type
CWE-862Missing Authorization
Timeline
Published18 Oct 2025
Updated31 Oct 2026
First seen7 Mar 2026
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