{"id":"CVE-2017-16562","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-16562","generatedAt":"2026-10-28T23:38:22.825Z","title":"The UserPro plugin before 4.9.17.1 for WordPress, when used on a site with the \"admin\" username, allows remote attackers to bypass authentication and obtain administrative access via a \"true\" value for the up_auto_log parameter in the QUERY_STRING to…","description":"The UserPro plugin before 4.9.17.1 for WordPress, when used on a site with the \"admin\" username, allows remote attackers to bypass authentication and obtain administrative access via a \"true\" value for the up_auto_log parameter in the QUERY_STRING to the default URI.","published":"2017-11-10T02:29:19.000Z","lastModified":"2026-06-17T01:09:29.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-287"],"affected":["userproplugin/userpro"],"epss":{"score":0.27369,"percentile":0.98052,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.19243,"percentile":0.97267},{"date":"2026-09-22","score":0.27369,"percentile":0.97973}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2017-11-04","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":43117,"kind":"exploit","title":"WordPress Plugin Userpro < 4.9.17.1 - Authentication Bypass","url":"https://www.exploit-db.com/exploits/43117","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/43117.txt","file":"exploits/php/webapps/43117.txt","published":"2017-11-04","added":"2017-11-06","updated":"2017-11-07","author":"Colette Chamberland","type":"webapps","platform":"php","port":null,"verified":false,"codes":["CVE-2017-16562"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 27.4%, higher than 98% 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":0.27369,"from":0.19243,"percentile":0.97973},"summary":"EPSS moved from 19.2% to 27.4% probability of exploitation in the next thirty days."}],"references":[{"url":"https://codecanyon.net/item/userpro-user-profiles-with-social-login/5958681?s_rank=9","tags":["Issue Tracking"],"source":"cve@mitre.org"},{"url":"https://wpvulndb.com/vulnerabilities/8950","tags":["Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/43117/","tags":["Exploit","Issue Tracking","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://codecanyon.net/item/userpro-user-profiles-with-social-login/5958681?s_rank=9","tags":["Issue Tracking"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wpvulndb.com/vulnerabilities/8950","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/43117/","tags":["Exploit","Issue Tracking","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-16562","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."}