CVE-2026-59167
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.
Not on KEV
Not in CISA's Known Exploited Vulnerabilities catalogue as of the last daily pull. Absence is not proof of safety.
0%
Chance of exploitation in the next 30 days, 31th percentile of all CVEs. A forecast; KEV outranks it.
10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
—
No exposure census on this CVE's dispatches.
- nvd.nist.gov ↗
- first.org · EPSS ↗
- github.com/JiHong88/suneditor/commit/a94ace269c7102bfb6de58a27a6547bc4eb09045 ↗
- github.com/JiHong88/suneditor/issues/1646 ↗
- github.com/JiHong88/suneditor/releases/tag/2.47.11 ↗
- github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4 ↗
- github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4 ↗
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