{"id":"UBUNTU-CVE-2018-3740","details":"A specially crafted HTML fragment can cause Sanitize gem for Ruby to allow non-whitelisted attributes to be used on a whitelisted HTML element.","modified":"2025-07-17T16:53:47Z","published":"2018-03-30T19:29:00Z","upstream":["CVE-2018-3740"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-3740"},{"type":"REPORT","url":"https://github.com/rgrove/sanitize/issues/176"},{"type":"REPORT","url":"https://github.com/rgrove/sanitize/commit/01629a162e448a83d901456d0ba8b65f3b03d46e"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-3740"}],"affected":[{"package":{"name":"ruby-sanitize","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-sanitize@2.1.0-2+deb9u1build0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-2+deb9u1build0.16.04.1"}]}],"versions":["2.1.0-1","2.1.0-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"ruby-sanitize","binary_version":"2.1.0-2+deb9u1build0.16.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-3740.json"}},{"package":{"name":"ruby-sanitize","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby-sanitize@2.1.0-2+deb9u1build0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-2+deb9u1build0.18.04.1"}]}],"versions":["2.1.0-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"ruby-sanitize","binary_version":"2.1.0-2+deb9u1build0.18.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-3740.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}