{"id":"CVE-2019-16220","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-16220","generatedAt":"2026-10-29T00:41:44.952Z","title":"In WordPress before 5.2.3, validation and sanitization of a URL in wp_validate_redirect in wp-includes/pluggable.php could lead to an open redirect if a provided URL path does not start with a forward slash.","description":"In WordPress before 5.2.3, validation and sanitization of a URL in wp_validate_redirect in wp-includes/pluggable.php could lead to an open redirect if a provided URL path does not start with a forward slash.","published":"2019-09-11T14:15:12.000Z","lastModified":"2026-06-17T02:21:55.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-601"],"affected":["wordpress/wordpress","debian/debian linux"],"epss":{"score":0.0255,"percentile":0.84945,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (2.55%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://core.trac.wordpress.org/changeset/45971","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/WordPress/WordPress/commit/c86ee39ff4c1a79b93c967eb88522f5c09614a28","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/10/msg00023.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://seclists.org/bugtraq/2020/Jan/8","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://wordpress.org/news/2019/09/wordpress-5-2-3-security-and-maintenance-release/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://wpvulndb.com/vulnerabilities/9863","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2020/dsa-4599","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2020/dsa-4677","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://core.trac.wordpress.org/changeset/45971","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/WordPress/WordPress/commit/c86ee39ff4c1a79b93c967eb88522f5c09614a28","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/10/msg00023.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://medium.com/@theodorejackson.us/rediscovering-an-old-vulnerability-cve-2019-16220-d25cc441752f","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2020/Jan/8","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wordpress.org/news/2019/09/wordpress-5-2-3-security-and-maintenance-release/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wpvulndb.com/vulnerabilities/9863","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2020/dsa-4599","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2020/dsa-4677","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-16220","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}