{"id":"UBUNTU-CVE-2021-44543","details":"An XSS vulnerability was found in Privoxy which was fixed in cgi_error_no_template() by encode the template name when Privoxy is configured to servce the user-manual itself.","modified":"2026-02-04T02:22:44.904792Z","published":"2021-12-23T20:15:00Z","related":["USN-5826-1"],"upstream":["CVE-2021-44543"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-44543"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2021/12/09/1"},{"type":"REPORT","url":"https://www.privoxy.org/gitweb/?p=privoxy.git;a=commit;h=0e668e9409c"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5826-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-44543"}],"affected":[{"package":{"name":"privoxy","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/privoxy@3.0.21-7+deb8u1ubuntu0.1~esm1?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.21-1","3.0.21-2","3.0.21-7+deb8u1build0.14.04.1","3.0.21-7+deb8u1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.21-7+deb8u1ubuntu0.1~esm1","binary_name":"privoxy"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44543.json"}},{"package":{"name":"privoxy","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/privoxy@3.0.24-1ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.23-3","3.0.23-4","3.0.23-5","3.0.24-1","3.0.24-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"privoxy","binary_version":"3.0.24-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44543.json"}},{"package":{"name":"privoxy","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/privoxy@3.0.26-5ubuntu0.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.26-5ubuntu0.3"}]}],"versions":["3.0.26-3","3.0.26-4","3.0.26-5","3.0.26-5ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"privoxy","binary_version":"3.0.26-5ubuntu0.3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44543.json"}},{"package":{"name":"privoxy","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/privoxy@3.0.28-2ubuntu0.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.28-2ubuntu0.2"}]}],"versions":["3.0.28-2","3.0.28-2ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"privoxy","binary_version":"3.0.28-2ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44543.json"}}],"schema_version":"1.7.3","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":"Ubuntu","score":"medium"}]}