Auth bypass in Userproplugin Userpro
CVE-2017-16562
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.274 (98.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.274 · newest: 0.274 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpvulndb.com/vulnerabilities/8950 (Third Party Advisory, Issue Tracking)
- codecanyon.net/item/userpro-user-profiles-with-social-login/5958681 (Issue Tracking)
- www.exploit-db.com/exploits/43117/ (Exploit, VDB Entry, Third Party Advisory, exploit, Issue Tracking)
Frequently asked questions
- What is CVE-2017-16562?
- CVE-2017-16562 is a critical-severity vulnerability in Userproplugin Userpro, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-11-10.
- How severe is CVE-2017-16562?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-16562 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.