{"id":"CVE-2026-107764","revision":null,"records":[{"revision":"453dcefcc7ea4f7a81ef109ed066ef58","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107764","aliases":[],"title":"SiteOrigin CSS <= 1.6.7 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment Author URL via Inspector href Sink","description":"The SiteOrigin CSS plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'url (comment_author_url)' parameter in all versions up to, and including, 1.6.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is possible because WordPress core's esc_url() preserves HTML entity-encoded characters, allowing a crafted entity-encoded payload in the comment 'Website' field to survive storage and be DOM-decoded by the browser into executable markup at the sink.","state":0,"publishedAt":"2026-10-16T05:30:26.095+00:00","modifiedAt":"2026-10-16T14:30:23.414+00:00","affected":[{"ecosystem":"Vendor product","name":"SiteOrigin CSS","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"gpriday\",\n                    \"product\": \"SiteOrigin CSS\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"1.6.7\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","score":7.2,"severity":"HIGH"}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/b0ff9652-1b45-43d6-949a-92bfeaee96d3?source=cve","https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.6/js/inspector.js#L280","https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.6/so-css.php#L69","https://plugins.trac.wordpress.org/browser/so-css/tags/1.6.6/so-css.php#L899","https://github.com/siteorigin/so-css/compare/1.6.7...1.6.8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107764","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107764","identifiers":["CVE-2026-107764"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-11-09T11:02:29.3269367+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T11:02:29.3269367+00:00","lastSuccessAt":"2026-11-09T11:02:35.5044085+00:00","error":null,"lastVerifiedAt":"2026-11-09T11:02:35.5044088+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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