CVE-2026-66010 - CERT CVE
ID CVE-2026-66010
Sažetak DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOM_ELEMENT_HANDLING.tagNameCheck, allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into innerHTML sinks, creating second-order XSS gadgets.
Reference
CVSS
Base: 6.1
Impact: 2.7
Exploitability:2.8
Pristup
VektorSloženostAutentikacija
NETWORK LOW NONE
Impact
PovjerljivostCjelovitostDostupnost
LOW LOW NONE
CVSS vektor CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Zadnje važnije ažuriranje 06-08-2026 - 00:47
Objavljeno 24-07-2026 - 13:18