{"id":"CVE-2026-54720","aliases":["GHSA-gvrw-qqp5-jgc5"],"url":"https://o3.security/vulnerability/CVE-2026-54720","summary":"Silverstripe Framework: Possible XSS attack through media embed","details":"Silverstripe Framework is a PHP framework which powers the Silverstripe CMS. In versions prior to 6.2.2, the \"Insert media from web\" functionality in the CMS is vulnerable to XSS from a specially crafted embed. This issue was fixed in version 6.2.2/","published":"2026-07-01T21:02:59.522Z","modified":"2026-08-12T03:51:21.831570058Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"silverstripe/framework","fixedVersion":"6.2.2"}],"fix":null,"references":[{"type":"WEB","url":"https://www.silverstripe.org/download/security-releases/cve-2026-54720"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54720.json"},{"type":"ADVISORY","url":"https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-gvrw-qqp5-jgc5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54720"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:21.831570058Z"}}