{"id":"UBUNTU-CVE-2021-4124","details":"janus-gateway is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","modified":"2026-04-22T13:00:55.567566Z","published":"2021-12-16T14:15:00Z","upstream":["CVE-2021-4124"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4124"},{"type":"REPORT","url":"https://huntr.dev/bounties/a6ca142e-60aa-4d6f-b231-5d1bcd1b7190"},{"type":"REPORT","url":"https://github.com/meetecho/janus-gateway/commit/f62bba6513ec840761f2434b93168106c7c65a3d"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-4124"}],"affected":[{"package":{"name":"janus","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/janus@0.2.6-1build2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.4-2","0.2.5-1","0.2.6-1","0.2.6-1build1","0.2.6-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.2.6-1build2","binary_name":"janus"},{"binary_name":"janus-demos","binary_version":"0.2.6-1build2"},{"binary_name":"janus-tools","binary_version":"0.2.6-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4124.json"}},{"package":{"name":"janus","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/janus@0.7.3-2build1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.3-2","0.7.3-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"janus","binary_version":"0.7.3-2build1"},{"binary_name":"janus-demos","binary_version":"0.7.3-2build1"},{"binary_name":"janus-tools","binary_version":"0.7.3-2build1"},{"binary_name":"libjs-janus","binary_version":"0.7.3-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4124.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"low"}]}