{"id":"EUVD-2026-23106","revision":"9fda82b9f7494064b528f3408671939d","records":[{"revision":"9fda82b9f7494064b528f3408671939d","observedAt":"2026-10-30T22:48:44.453+00:00","statement":{"source":"euvd","id":"EUVD-2026-23106","aliases":["CVE-2026-35569"],"title":"ApostropheCMS is an open-source Node.js content management system. Versions 4.28.0 and prior contain a stored cross-site scripting vulnerability in SEO-related fields (SEO Title and Meta Description), where user-controlled input is rendered…","description":"ApostropheCMS is an open-source Node.js content management system. Versions 4.28.0 and prior contain a stored cross-site scripting vulnerability in SEO-related fields (SEO Title and Meta Description), where user-controlled input is rendered without proper output encoding into HTML contexts including <title> tags, <meta> attributes, and JSON-LD structured data. An attacker can inject a payload such as \"></title><script>alert(1)</script> to break out of the intended HTML context and execute arbitrary JavaScript in the browser of any authenticated user who views the affected page. This can be leveraged to perform authenticated API requests, access sensitive data such as usernames, email addresses, and roles via internal APIs, and exfiltrate it to an attacker-controlled server. This issue has been fixed in version 4.29.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","score":8.7,"severity":null}],"references":["https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-855c-r2vq-c292","https://github.com/apostrophecms/apostrophe/commit/0e57dd07a56ae1ba1e3af646ba026db4d0ab5bb3","https://github.com/Chittu13/cve-research/tree/main/CVE-2026-35569"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-23106","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Apr 15, 2026, 7:34:23 PM","dateUpdated":"May 14, 2026, 4:07:20 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-23106","identifiers":["EUVD-2026-23106","CVE-2026-35569"]},"retained":false,"historicalAffected":[]}],"coverage":[]}