DOMPurify from 3.4.13 before 3.4.16 DOM XSS via IN_PLACE afterSanitize Hooks
DOMPurify from 3.4.13 before 3.4.16 contains a cross-site scripting vulnerability because IN_PLACE mode fails to neutralize subtrees detached by afterSanitizeElements or afterSanitizeAttributes hooks. Attackers can supply markup with on* handlers inside a wrapper removed by such hooks, leaving handlers armed on the live DOM to execute script in the victim origin.
CVE-2026-109344
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109344
DOMPurify
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "cure53",
"product": "DOMPurify",
"versions": [
{
"status": "affected",
"version": "3.4.13",
"lessThan": "3.4.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "3.4.16",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/dompurify",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109344
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #20490 · Revision 1
- Added to Heist Feed
- Publisher date