Vulnerability in Ultimatemember Ultimate Member
CVE-2020-36157
An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka Unauthenticated Privilege Escalation via User Roles. Due to the lack of filtering on the role parameter that could be supplied during the registration process, an attacker could supply the role parameter with a WordPress capability (or any custom Ultimate Member role) and effectively be granted those privileges.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (86.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: +0.000
Affected products
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/33f059c5-58e5-44b9-bb27-793c3cedef3b (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-36157?
- CVE-2020-36157 is a critical-severity vulnerability in Ultimatemember Ultimate Member. CVSS score: 10.0/10. Published 2021-01-04.
- How severe is CVE-2020-36157?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2020-36157 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.