{"id":"CVE-2026-2430","summary":"Autoptimize \u003c= 3.1.14 - Authenticated (Contributor+) Stored Cross-Site Scripting via Lazy-loaded Image Attributes","details":"The Autoptimize plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the lazy-loading image processing in all versions up to, and including, 3.1.14. This is due to the use of an overly permissive regular expression in the `add_lazyload` function that replaces all occurrences of `\\ssrc=` in image tags without limiting to the actual attribute. 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 by crafting an image tag where the `src` URL contains a space followed by `src=`, causing the regex to break the HTML structure and promote text inside attribute values into executable HTML attributes.","modified":"2026-08-12T03:51:32.455686864Z","published":"2026-03-20T23:25:14.410Z","database_specific":{"cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2430.json","unresolved_ranges":[{"extracted_events":[{"last_affected":"3.1.14"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"Wordfence"},"references":[{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/autoptimize/tags/3.1.14/classes/autoptimizeImages.php#L987"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/autoptimize/trunk/classes/autoptimizeImages.php#L987"},{"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":"WEB","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/ddc5c4d7-09dc-45bf-a3c7-5a0757e3110a?source=cve"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2430.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2430"},{"type":"FIX","url":"https://github.com/futtta/autoptimize/commit/a0f87112fe80b5a97b036229c41cb18454392858"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/futtta/autoptimize","events":[{"introduced":"0"},{"fixed":"a0f87112fe80b5a97b036229c41cb18454392858"}],"database_specific":{"source":"REFERENCES"}}],"versions":["2.7.8","2.3.2","2.3.1","2.3.0","2.2.2","2.2.1","2.2.0","2.1.0","2.0.2","2.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2430.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"}]}