Threats Tagged 'cve-2026-65902'
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Threats Tagged 'cve-2026-65902'
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CVE-2026-65902: Trust Boundary Violation in cure53 DOMPurifyCVE-2026-65902 0 DOMPurify before 3.4.7 (affected versions <= 3.4.5) passes direct references to the module-level DEFAULT_ALLOWED_TAGS and DEFAULT_ALLOWED_ATTR sets to the uponSanitizeElement and uponSanitizeAttribute hooks via data.allowedTags / data.allowedAttributes when sanitize is called without an explicit cfg.ALLOWED_TAGS / cfg.ALLOWED_ATTR array. A hook that mutates these fields permanently widens the default allow-lists for the lifetime of the DOMPurify instance, so all subsequent default-config sanitize calls inherit the widened defaults and attacker payloads using the poisoned tag/attribute name survive sanitization. removeAllHooks(), clearConfig(), and passing a fresh cfg do not recover the state; only constructing a new DOMPurify instance does. Join the discussion | CVE Database V5 | 07/23/2026, 13:16:20 UTC Added: 07/23/2026, 13:22:42 UTC |
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