XSS in Optimizingmatters Autoptimize
CVE-2026-2352
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()`…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.000 (7.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Optimizingmatters Autoptimize — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/5f3f9891-710e-49e4-b388-aa6d9…
- plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.14/classes/autoptimizeM…
- plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.14/classes/autoptimizeI…
- plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.14/classes/autoptimizeI…
- plugins.trac.wordpress.org/browser/autoptimize/trunk/classes/autoptimizeMetabox…
- plugins.trac.wordpress.org/browser/autoptimize/trunk/classes/autoptimizeImages…
- github.com/futtta/autoptimize/commit/60d1e487e536a97ae317784f8aeaf0d2e93cd717
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-2352?
- CVE-2026-2352 is a medium-severity vulnerability in Optimizingmatters Autoptimize, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-03-20.
- How severe is CVE-2026-2352?
- Medium severity. CVSS v3 base score is 6.4 out of 10.