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CVE PROGRAM SOURCE RECORD5.1 Medium

CVE-2026-116803

DOMPurify before 3.4.17 DOM XSS via IN_PLACE Hook-Detached Subtrees

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

DOMPurify before 3.4.17 contains a cross-site scripting vulnerability that allows attackers to keep event handlers armed when an IN_PLACE hook removes a parent or sibling node. Attacker markup in detached subtrees is never walked or neutralized, so handlers like img onerror fire after sanitize() returns, causing DOM XSS.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

cure53 DOMPurify

Default version status: unaffected

  • 0 to < 3.4.17affected
  • 3.4.17unaffected
pkg:npm/dompurify

References