What’s Vulnerable › Vulnerabilities

CVE-2021-4020: Cross-site Scripting (XSS) - Stored in meetecho/janus-gateway

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-27 · updated 2026-06-17
• Weakness: CWE-79

Description

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

Affected products

• meetecho/janus-gateway: through 0.11.5

References

• https://github.com/meetecho/janus-gateway/commit/d3fc00ec803d6c41d8f98908732f44e7f4911a1c
• https://huntr.dev/bounties/9814baa8-7bdd-4e31-a132-d9d15653409e
• https://github.com/meetecho/janus-gateway/commit/d3fc00ec803d6c41d8f98908732f44e7f4911a1c
• https://huntr.dev/bounties/9814baa8-7bdd-4e31-a132-d9d15653409e

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