Autoptimize <= 3.1.14 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'ao_post_preload' Meta Value
| CVE | CVE-2026-2352 |
|---|---|
| CVSS | 6.4 (Medium) |
| Publicly Published | March 20, 2026 |
| Last Updated | March 20, 2026 |
| Researcher |
bashu
- VN
|
Description
The Autoptimize plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ao_post_preload' meta value in all versions up to, and including, 3.1.14. This is due to insufficient input sanitization in the `ao_metabox_save()` function and missing output escaping when the value is rendered into a `<link>` tag in `autoptimizeImages.php`. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page, granted the "Image optimization" or "Lazy-load images" setting is enabled in the plugin configuration.
Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- github.com
- plugins.trac.wordpress.org
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Vulnerability Details for Autoptimize
| Software Type | Plugin |
|---|---|
| Software Slug | autoptimize (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 3.1.15, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Autoptimize
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