CVE-2021-4020: Meetecho Janus

Medium severity, CVSS 5.4. EPSS: 0.8% chance of exploitation in the next 30 days.

janus-gateway is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected products

• Meetecho Janus: up to and including 0.11.5

Published 2021-11-27. Last modified 2026-06-17.