{"id":"CVE-2026-124494","aliases":["EUVD-2026-119549","GHSA-cm78-x5pp-rjx2","GHSA-v4jx-8pj6-w4w8"],"status":"published","title":"SunEditor before 3.4.0 Stored XSS via \u0026colon; Entity Sanitizer Bypass","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 \u0026colon; to an empty string. Attackers can inject href values such as javascript\u0026colon; that pass the _isSafeURL() check but are decoded by browsers, executing JavaScript when victims click stored links.","severity":{"version":"4.0","score":9.3,"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00344,"percentile":0.28347,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-11-08T13:16:09Z","modified":"2026-11-09T02:47:18Z","products":[{"vendor":"jihong88","product":"suneditor"}],"references":[{"url":"https://github.com/JiHong88/suneditor/security/advisories/GHSA-v4jx-8pj6-w4w8","tags":["vendor-advisory","advisory"]},{"url":"https://www.vulncheck.com/advisories/suneditor-before-3.4.0-stored-xss-via-colon-entity-sanitizer-bypass","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124494","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-cm78-x5pp-rjx2"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/124xxx/CVE-2026-124494.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-124494","title":"SunEditor before 3.4.0 Stored XSS via \u0026colon; Entity Sanitizer Bypass","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 \u0026colon; to an empty string. Attackers can inject href values such as javascript\u0026colon; that pass the _isSafeURL() check but are decoded by browsers, executing JavaScript when victims click stored links.","status":"published","published":"2026-11-08T13:16:09.907Z","modified":"2026-11-10T17:53:45.128Z","cvss":[{"version":"4.0","score":9.3,"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","level":"critical","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-08T14:43:22.764053Z"}],"euvd":[{"id":"EUVD-2026-119549","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 \u0026colon; to an empty string. Attackers can inject href values such as javascript\u0026colon; that pass the _isSafeURL() check but are decoded by browsers, executing JavaScript when victims click stored links.","status":"published","published":"2026-11-08T13:16:09Z","modified":"2026-11-10T17:53:45Z","cvss":[{"version":"4.0","score":9.3,"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","level":"critical"}],"updated_at":"2026-11-08T18:13:38.995386Z"}],"ghsa":[{"id":"GHSA-cm78-x5pp-rjx2","title":"SunEditor before 3.4.0 contains a stored cross-site scripting vulnerability because the html...","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 \u0026colon; to an empty string. Attackers can inject href values such as javascript\u0026colon; that pass the _isSafeURL() check but are decoded by browsers, executing JavaScript when victims click stored links.","status":"published","published":"2026-11-08T15:31:30Z","modified":"2026-11-08T15:31:37Z","cvss":[{"version":"4.0","score":9.3,"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","level":"critical"}],"cwes":["CWE-79"],"updated_at":"2026-11-08T15:43:44.180314Z"}],"nvd":[{"id":"CVE-2026-124494","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 \u0026colon; to an empty string. Attackers can inject href values such as javascript\u0026colon; that pass the _isSafeURL() check but are decoded by browsers, executing JavaScript when victims click stored links.","status":"published","published":"2026-11-08T14:18:19.277Z","modified":"2026-11-12T20:28:31.817Z","cvss":[{"version":"4.0","score":9.3,"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","level":"critical","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-08T16:10:21.259879Z"}],"osv":[{"id":"CVE-2026-124494","title":"SunEditor before 3.4.0 Stored XSS via \u0026colon; Entity Sanitizer Bypass","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 \u0026colon; to an empty string. Attackers can inject href values such as javascript\u0026colon; that pass the _isSafeURL() check but are decoded by browsers, executing JavaScript when victims click stored links.","status":"published","published":"2026-11-08T13:16:09.907Z","modified":"2026-11-11T02:30:34.797912406Z","cvss":[{"version":"4.0","score":9.3,"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","level":"critical"}],"cwes":["CWE-79"],"updated_at":"2026-11-09T03:16:17.543303Z"}]}}