DOMPurify Cross-realm SANITIZE Bypass via instanceof Check CVE-2025-4458 with POC
Security Advisory
CVE-2025-4458
Medium
DOMPurify
Affected:
- DOMPurify <= 3.4.5
Fixed in:
- 3.4.6
Referenced CVEs:
CVE-2026-49458 · 6.1
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