{"id":"CVE-2026-54720","aliases":["GHSA-gvrw-qqp5-jgc5"],"title":"Silverstripe Framework: Possible XSS attack through media embed","summary":"Silverstripe Framework: Possible XSS attack through media embed","severity":"medium","cvss":5.4,"cwe":["CWE-79"],"vendor":"silverstripe","product":"silverstripe/framework","ecosystem":"composer","affected":["silverstripe/framework < 6.2.2"],"patched":["silverstripe/framework 6.2.2"],"published":"2026-08-27","updated":"2026-08-27","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-gvrw-qqp5-jgc5","references":[{"url":"https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-gvrw-qqp5-jgc5"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54720"},{"url":"https://github.com/silverstripe/silverstripe-framework/pull/11993"},{"url":"https://github.com/silverstripe/silverstripe-framework/commit/1bcb02adfc365c6436dc26ab2f6dd32d97f3979b"},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/CVE-2026-54720.yaml"},{"url":"https://github.com/silverstripe/silverstripe-framework/releases/tag/6.2.2"},{"url":"https://www.silverstripe.org/download/security-releases/cve-2026-54720"},{"url":"https://github.com/advisories/GHSA-gvrw-qqp5-jgc5"}],"tags":["ghsa","composer"],"epss":0.00263,"epssPercentile":0.16077,"ingestedAt":"2026-08-27T17:05:20.084Z","slug":"CVE-2026-54720","body":"## Overview\n\n### Impact\nThe \"Insert media from web\" functionality in the CMS is vulnerable to XSS from a specially crafted embed.\n\n### Reported by\nJack Wallace from Bastion Security\n\n## Affected packages\n\n- `silverstripe/framework < 6.2.2`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `silverstripe/framework 6.2.2`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}