{"id":"UBUNTU-CVE-2020-35269","details":"Nagios Core application version 4.2.4 is vulnerable to Site-Wide Cross-Site Request Forgery (CSRF) in many functions, like adding – deleting for hosts or servers.","modified":"2026-05-20T16:06:23.600692592Z","published":"2020-12-23T19:15:00Z","upstream":["CVE-2020-35269"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-35269"},{"type":"REPORT","url":"https://gist.github.com/MoSalah20/d1d40b43eafba0bd22ee4cddecad3cbc"},{"type":"REPORT","url":"https://github.com/NagiosEnterprises/nagioscore/issues/809"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-35269"}],"affected":[{"package":{"name":"nagios4","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nagios4?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.4-3","4.3.4-3ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.3.4-3ubuntu0.1","binary_name":"nagios4"},{"binary_version":"4.3.4-3ubuntu0.1","binary_name":"nagios4-cgi"},{"binary_version":"4.3.4-3ubuntu0.1","binary_name":"nagios4-common"},{"binary_name":"nagios4-core","binary_version":"4.3.4-3ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"}},{"package":{"name":"nagios4","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/nagios4?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.6-4","4.4.6-4ubuntu0.22.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.4.6-4ubuntu0.22.04.1","binary_name":"nagios4"},{"binary_name":"nagios4-cgi","binary_version":"4.4.6-4ubuntu0.22.04.1"},{"binary_version":"4.4.6-4ubuntu0.22.04.1","binary_name":"nagios4-common"},{"binary_name":"nagios4-core","binary_version":"4.4.6-4ubuntu0.22.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"}},{"package":{"name":"nagios4","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/nagios4?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.6-4","4.4.6-4ubuntu0.24.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"nagios4","binary_version":"4.4.6-4ubuntu0.24.04.1"},{"binary_name":"nagios4-cgi","binary_version":"4.4.6-4ubuntu0.24.04.1"},{"binary_name":"nagios4-common","binary_version":"4.4.6-4ubuntu0.24.04.1"},{"binary_name":"nagios4-core","binary_version":"4.4.6-4ubuntu0.24.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"}},{"package":{"name":"nagios4","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/nagios4?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.6-4.1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"nagios4","binary_version":"4.4.6-4.1ubuntu1"},{"binary_name":"nagios4-cgi","binary_version":"4.4.6-4.1ubuntu1"},{"binary_name":"nagios4-common","binary_version":"4.4.6-4.1ubuntu1"},{"binary_name":"nagios4-core","binary_version":"4.4.6-4.1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"}},{"package":{"name":"nagios4","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/nagios4?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.6-4.1ubuntu1","4.4.6-4.1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"nagios4","binary_version":"4.4.6-4.1ubuntu2"},{"binary_name":"nagios4-cgi","binary_version":"4.4.6-4.1ubuntu2"},{"binary_version":"4.4.6-4.1ubuntu2","binary_name":"nagios4-common"},{"binary_version":"4.4.6-4.1ubuntu2","binary_name":"nagios4-core"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-35269.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}