{"id":"CVE-2026-2352","details":"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 `\u003clink\u003e` 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.","modified":"2026-04-10T05:40:35.374414Z","published":"2026-03-21T00:16:25.873Z","references":[{"type":"WEB","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/5f3f9891-710e-49e4-b388-aa6d99c01840?source=cve"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.14/classes/autoptimizeImages.php#L804"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.14/classes/autoptimizeImages.php#L938"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.14/classes/autoptimizeMetabox.php#L276"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/autoptimize/trunk/classes/autoptimizeImages.php#L804"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/autoptimize/trunk/classes/autoptimizeMetabox.php#L276"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3482530%40autoptimize&new=3482530%40autoptimize&sfp_email=&sfph_mail="},{"type":"FIX","url":"https://github.com/futtta/autoptimize/commit/60d1e487e536a97ae317784f8aeaf0d2e93cd717"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/futtta/autoptimize","events":[{"introduced":"0"},{"fixed":"60d1e487e536a97ae317784f8aeaf0d2e93cd717"}]}],"versions":["2.0.1","2.0.2","2.1.0","2.2.0","2.2.1","2.2.2","2.3.0","2.3.1","2.3.2","2.7.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2352.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"}]}