CVE-2026-116803

MediumCVSS 6.1/10Last modified Oct 31, 2026

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
cure53DOMPurify< 3.4.17

References

Timeline

Published
Oct 27, 2026
Last modified
Oct 31, 2026
NVD status
Awaiting Analysis

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CVE-2026-116803: Medium severity, CVSS 6.1 | Vulnix