VULNERABILITY INTELLIGENCE

CVE-2026-65903

CVSS score6.1 MEDIUM
EPSS probability0.33%
CISA KEVNot currently listed
Published2026-07-23
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

DOMPurify before 3.4.0 contains a logic error in the ADD_TAGS function where short-circuit evaluation allows forbidden tags to bypass FORBID_TAGS restrictions. Attackers can craft input containing tags listed in FORBID_TAGS that are also added via ADD_TAGS function, causing them to be retained in sanitized output.

Weakness classification

  • disclosure@vulncheck.com: CWE-697

Primary references