{"id":"CVE-2018-10101","aliases":["DEBIAN-CVE-2018-10101","EUVD-2018-2180","GHSA-ccmp-622j-3xf7","UBUNTU-CVE-2018-10101"],"status":"published","title":"Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the...","description":"Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.","severity":{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02636,"percentile":0.85659,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-601"],"published":"2018-04-14T13:00:00Z","modified":"2026-10-24T10:47:31Z","fixes":[{"ecosystem":"Debian:12","package":"wordpress","fixed_in":["4.9.5+dfsg1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"wordpress","fixed_in":["4.9.5+dfsg1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"wordpress","fixed_in":["4.9.5+dfsg1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.5+dfsg1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.5+dfsg1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"wordpress","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.5+dfsg1-1"}]}]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"wordpress","product":"wordpress"}],"references":[{"url":"https://wpvulndb.com/vulnerabilities/9053","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.securityfocus.com/bid/104350","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"http://www.securitytracker.com/id/1040836","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://www.debian.org/security/2018/dsa-4193","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://wordpress.org/news/2018/04/wordpress-4-9-5-security-and-maintenance-release/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://core.trac.wordpress.org/changeset/42894","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","fix","report"]},{"url":"https://codex.wordpress.org/Version_4.9.5","tags":["x_refsource_CONFIRM","x_transferred","Vendor 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