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Vulnerability record · CVE-2017-16562 · published 10 November 2017

CVE-2017-16562: Userproplugin userpro improper authentication vulnerability

UUserproplugin · Userpro

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.

9.8 CVSS 3.0 Critical EPSS 27% · top 2.0% CWE-287 · Improper authentication
9.8CVSS 3.0 base score, v2 7.5
27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://codecanyon.net/item/userpro-user-profiles-with-social-login/5958681?s_rank=9 Issue Tracking
https://wpvulndb.com/vulnerabilities/8950 Issue TrackingThird Party Advisory
https://www.exploit-db.com/exploits/43117/ ExploitIssue TrackingThird Party AdvisoryVDB Entry
https://codecanyon.net/item/userpro-user-profiles-with-social-login/5958681?s_rank=9 Issue Tracking
https://wpvulndb.com/vulnerabilities/8950 Issue TrackingThird Party Advisory
https://www.exploit-db.com/exploits/43117/ ExploitIssue TrackingThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-16562), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.