CVE-2026-59167

CVE-2026-59167 · SunEditor: Critical XSS vulnerability - sanitizer bypass

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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 10.0 · Критический · EPSS 0,5% · Есть исправление

Опубликовано

2026-09-23T13:52:56.747Z

Обновлено

2026-09-24T14:52:33.658Z

Стек: node

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