CVE-2026-124492

CVE-2026-124492CVE-2026-124492

Description

SunEditor before 3.4.0 contains a stored cross-site scripting vulnerability in ModalAnchorEditor's #createBookmarkList, which inserts entity-decoded h1-h6 header textContent into the bookmark list via innerHTML without escaping. Attackers can store HTML-encoded payloads in editor headers that execute JavaScript when a victim opens the link modal and types # in the URL input.

Scoring

CVSS 7.6 ()
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Last modified2026-11-08
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.