PT-2026-125508

CVE-2026-116802

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Published

2026-10-26

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Updated

2026-10-27

Description by

CVSS 3.1
6.1
Medium
MetricsAV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
DOMPurify before 3.4.17 contains a cross-site scripting vulnerability that allows attackers to bypass the SMIL attributeName=href guard when PARSER MEDIA TYPE is application/xhtml+xml, because transformCaseFunc does not lowercase attribute names. Attackers can submit SVG with an animate or set element using attributeName="href" and a javascript: entry in values to execute script when users click the sanitized link.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Weakness enumeration
CWE-79: Improper Neutralization of Input During Web Page Generation (\'Cross-site Scripting\')
Related identifiers
CVE-2026-116802
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