Privilege escalation in Ultimatemember Ultimate Member
CVE-2020-36156
An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka Authenticated Privilege Escalation via Profile Update. Any user with wp-admin access to the profile.php page could supply the parameter um-role with a value set to any role (e.g., Administrator) during a profile update, and effectively escalate their privileges.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.021 (80.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.021 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wordpress.org/plugins/ultimate-member/ (Third Party Advisory, Release Notes)
- www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabilities-af… (Exploit, Third Party Advisory)
- wpscan.com/vulnerability/dd4c4ece-7206-4788-8747-f0c0f3ab0a53 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-36156?
- CVE-2020-36156 is a critical-severity vulnerability in Ultimatemember Ultimate Member, classified under Improper Privilege Management. CVSS score: 9.9/10. Published 2021-01-04.
- How severe is CVE-2020-36156?
- Critical severity. CVSS v3 base score is 9.9 out of 10.
- Is CVE-2020-36156 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.