CVE-2026-59167
criticalSunEditor is a lightweight and powerful WYSIWYG editor in vanilla JavaScript with no dependencies.
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:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/JiHong88/suneditor/commit/a94ace269c7102bfb6de58a27a6547bc4eb09045 security-advisories@github.com
- https://github.com/JiHong88/suneditor/issues/1646 security-advisories@github.com
- https://github.com/JiHong88/suneditor/releases/tag/2.47.11 security-advisories@github.com
- https://github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4 security-advisories@github.com
- https://github.com/JiHong88/suneditor/security/advisories/GHSA-6rf4-v2fh-m6p4 134c704f-9b21-4f2e-91b3-4a467353bcc0