{"id":"USN-6792-1","summary":"flask-security vulnerability","details":"Naom Moshe discovered that Flask-Security incorrectly validated URLs. An attacker could use this issue to redirect users to arbitrary URLs.\n","modified":"2026-02-10T04:43:49Z","published":"2024-05-28T16:08:11Z","related":["UBUNTU-CVE-2021-23385"],"upstream":["CVE-2021-23385","UBUNTU-CVE-2021-23385"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6792-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-23385"}],"affected":[{"package":{"name":"flask-security","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/flask-security@1.7.5-2ubuntu0.18.04.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.5-2ubuntu0.18.04.1~esm1"}]}],"versions":["1.7.5-1","1.7.5-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.7.5-2ubuntu0.18.04.1~esm1","binary_name":"python3-flask-security"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-23385"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6792-1.json"}},{"package":{"name":"flask-security","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/flask-security@1.7.5-2ubuntu0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.5-2ubuntu0.20.04.1"}]}],"versions":["1.7.5-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.7.5-2ubuntu0.20.04.1","binary_name":"python3-flask-security"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-23385"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6792-1.json"}},{"package":{"name":"flask-security","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/flask-security@4.0.0-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.0-1ubuntu0.1"}]}],"versions":["4.0.0-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.0.0-1ubuntu0.1","binary_name":"python3-flask-security"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-23385"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6792-1.json"}}],"schema_version":"1.7.3"}