CVE-2026-79670 (GCVE-0-2026-79670)
Vulnerability from cvelistv5
Published
2026-08-25 11:33
Modified
2026-08-25 17:30
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Summary
Ech0 before 4.4.3 contains a stored cross-site scripting vulnerability in the file upload endpoint that validates Content-Type using only client-supplied headers without server-side inspection. Attackers with admin privileges can upload SVG or HTML files containing JavaScript that executes in the application origin when accessed by any user, enabling session hijacking and data exfiltration.
Impacted products
Vendor Product Version
lin-snow Ech0 Version: 0   
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Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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