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CVE-2026-116802

5.1 medium Awaiting Analysis
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 3

  1. StatusPublished → Awaiting AnalysisNVD modified 2026-10-27 15:06
  2. StatusReceived → PublishedNVD modified 2026-10-26 23:05
  3. First seenCVSS 5.1NVD modified 2026-10-27 00:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 2