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CVE-2026-124493

N/A CVSS: N/A Published: 2026-11-08 Modified: 2026-11-08

Description

SunEditor before 3.4.0 contains a stored cross-site scripting vulnerability in the DocumentType constructor that injects header textContent into innerHTML without HTML escaping. Attackers can store entity-encoded HTML in h1-h6 headers that executes JavaScript when editors using document:header mode initialize, enabling session cookie theft.

Affected Platforms

Unknown

Weakness Type

CWE-79

References