CVE-2026-2352mediumCWE-79

CVE-2026-2352: medium-severity vulnerability in optimizingmatters Autoptimize

Autoptimize <= 3.1.14 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'ao_post_preload' Meta Value

Published · Updated

Follow this CVE+ Monitor Autoptimize

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.4epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Affected products
optimizingmatters · Autoptimize
Related CVEs — optimizingmatters Autoptimize

In the same product, most dangerous first.

CVE-2025-13401MEDIUMAutoptimize <= 3.1.13 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.3%CVE-2026-14995HIGHAutoptimize <= 3.1.15.1 - Unauthenticated Stored Cross-Site Scripting via REQUEST_URI PathEPSS 0.3%CVE-2026-78471MEDIUMAutoptimize <= 3.1.15.1 - Unauthenticated Stored Cross-Site Scripting via Comment Author NameEPSS 0.2%CVE-2026-2430MEDIUMAutoptimize <= 3.1.14 - Authenticated (Contributor+) Stored Cross-Site Scripting via Lazy-loaded Image AttributesEPSS 0.2%