Security Advisory

CVE-2026-79670

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-25 11:33:31

Last updated 2026-08-25 17:30:32

Assigner VulnCheck

CVSS score 4.8

State PUBLISHED

Description

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.

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