{"id":"CVE-2017-5487","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-5487","generatedAt":"2026-10-28T20:46:58.833Z","title":"wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php in the REST API implementation in WordPress 4.7 before 4.7.1 does not properly restrict listings of post authors, which allows remote attackers to obtain sensitive information via a…","description":"wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php in the REST API implementation in WordPress 4.7 before 4.7.1 does not properly restrict listings of post authors, which allows remote attackers to obtain sensitive information via a wp-json/wp/v2/users request.","published":"2017-01-15T02:59:03.000Z","lastModified":"2026-06-17T01:20:36.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-200"],"affected":["wordpress/wordpress"],"epss":{"score":0.87299,"percentile":0.99751,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.77037,"percentile":0.99542},{"date":"2026-09-22","score":0.87299,"percentile":0.99745}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2017-03-03","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":41497,"kind":"exploit","title":"WordPress Core < 4.7.1 - Username Enumeration","url":"https://www.exploit-db.com/exploits/41497","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/41497.php","file":"exploits/php/webapps/41497.php","published":"2017-03-03","added":"2017-03-03","updated":"2017-05-04","author":"Dctor","type":"webapps","platform":"php","port":null,"verified":false,"codes":["CVE-2017-5487"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comwordpress-4.7.1.zip","screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 87.3%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.87299,"from":0.77037,"percentile":0.99745},"summary":"EPSS moved from 77.0% to 87.3% probability of exploitation in the next thirty days."}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2017/01/14/6","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/95391","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1037591","source":"cve@mitre.org"},{"url":"https://codex.wordpress.org/Version_4.7.1","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/WordPress/WordPress/commit/daf358983cc1ce0c77bf6d2de2ebbb43df2add60","tags":["Patch"],"source":"cve@mitre.org"},{"url":"https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://wpvulndb.com/vulnerabilities/8715","source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/41497/","source":"cve@mitre.org"},{"url":"https://www.wordfence.com/blog/2016/12/wordfence-blocks-username-harvesting-via-new-rest-api-wp-4-7/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2017/01/14/6","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/95391","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1037591","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://codex.wordpress.org/Version_4.7.1","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/WordPress/WordPress/commit/daf358983cc1ce0c77bf6d2de2ebbb43df2add60","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wpvulndb.com/vulnerabilities/8715","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/41497/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.wordfence.com/blog/2016/12/wordfence-blocks-username-harvesting-via-new-rest-api-wp-4-7/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-5487","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."}