{"cve":"CVE-2026-59167","nvd":{"published":"2026-09-23T14:17:07.923","modified":"2026-09-24T15:17:25.303","status":"Awaiting Analysis","description":"SunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies. Prior to 2.47.11, the sanitizer in src/lib/core.js does not consistently reject namespaced or custom HTML elements, allowing event-handler attributes to remain on crafted elements. When an application renders attacker-controlled editor content and a user interacts with the element, the retained handler can execute script in the application's browser origin, enabling stored cross-site scripting, data exposure, or unauthorized browser-context actions. This issue is fixed in version 2.47.11.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":["CWE-79"],"references":["https://github.com/JiHong88/suneditor/commit/a94ace269c7102bfb6de58a27a6547bc4eb09045","https://github.com/JiHong88/suneditor/issues/1646","https://github.com/JiHong88/suneditor/releases/tag/2.47.11","https://github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4","https://github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:56:02.509636177+00:00"},"epss":{"cve":"CVE-2026-59167","score":0.00499,"percentile":0.42793,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-6rf4-v2fh-m6p4","url":"https://osv.dev/vulnerability/GHSA-6rf4-v2fh-m6p4","summary":"SunEditor: Critical XSS vulnerability - sanitizer bypass","modified":"2026-09-24T15:15:04.678929908Z","packages":[{"ecosystem":"npm","name":"suneditor","purl":"pkg:npm/suneditor","ranges":["<2.47.11"],"fixed":["2.47.11"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}