{"affected":[{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"suneditor","product":"suneditor","source":"CNA: VulnCheck","vendor":"JiHong88","versions":[{"lessThan":"3.4.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"3.4.0","versionType":"semver"}]}],"cveId":"CVE-2026-124494","cwes":["CWE-79"],"description":"SunEditor before 3.4.0 contains a stored cross-site scripting vulnerability because the html.clean() sanitizer's _normalizeURL() function decodes named entities like : to an empty string. Attackers can inject href values such as javascript: that pass the _isSafeURL() check but are decoded by browsers, executing JavaScript when victims click stored links.","epss":{"date":"2026-11-10","percentile":0.28207,"score":0.00344},"exploits":[],"kev":null,"metrics":[{"score":9.3,"severity":"critical","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","version":"4.0"},{"score":9.3,"severity":"critical","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"}],"modifiedAt":1794333225128,"publishedAt":1794143769907,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/JiHong88/suneditor/security/advisories/GHSA-v4jx-8pj6-w4w8"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/suneditor-before-3.4.0-stored-xss-via-colon-entity-sanitizer-bypass"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/JiHong88/suneditor/security/advisories/GHSA-v4jx-8pj6-w4w8"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/suneditor-before-3.4.0-stored-xss-via-colon-entity-sanitizer-bypass"}],"remediation":[],"revision":"a6ffced0471b1f39a2ed41ba6e50fb9f69d8944794a245fe89d7b1f273b4b985","sources":[{"modifiedAt":1794333225128,"name":"CNA: VulnCheck","retrievedAt":1794334269599,"url":"https://www.cve.org/CVERecord?id=CVE-2026-124494"},{"modifiedAt":1794147499277,"name":"NVD","retrievedAt":1794161781398,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124494"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794334277376,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-124494"}],"ssvc":{"assessedAt":1794327978573,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"SunEditor before 3.4.0 Stored XSS via : Entity Sanitizer Bypass","updatedAt":1794334277376}