{"id":"UBUNTU-CVE-2018-10101","details":"Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.","modified":"2025-07-17T16:53:58Z","published":"2018-04-16T09:58:00Z","withdrawn":"2025-07-18T16:44:35Z","upstream":["CVE-2018-10101"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-10101"},{"type":"REPORT","url":"https://core.trac.wordpress.org/changeset/42894"},{"type":"REPORT","url":"https://github.com/WordPress/WordPress/commit/804363859602d4050d9a38a21f5a65d9aec18216"},{"type":"REPORT","url":"https://codex.wordpress.org/Version_4.9.5"},{"type":"REPORT","url":"https://wordpress.org/news/2018/04/wordpress-4-9-5-security-and-maintenance-release/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-10101"}],"affected":[{"package":{"name":"wordpress","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/wordpress@4.9.5+dfsg1-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.5+dfsg1-1"}]}],"versions":["4.8.2+dfsg-2","4.8.3+dfsg-1","4.9.1+dfsg-1","4.9.2+dfsg-1","4.9.4+dfsg-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.9.5+dfsg1-1","binary_name":"wordpress"},{"binary_version":"4.9.5+dfsg1-1","binary_name":"wordpress-l10n"},{"binary_version":"4.9.5+dfsg1-1","binary_name":"wordpress-theme-twentyfifteen"},{"binary_version":"4.9.5+dfsg1-1","binary_name":"wordpress-theme-twentyseventeen"},{"binary_version":"4.9.5+dfsg1-1","binary_name":"wordpress-theme-twentysixteen"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-10101.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}