CVE-2020-36157

moderate-risk
Published 2021-01-04

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.

Do I need to act?

~
1.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 427bb6da1c2f984b0a0be7013e490496023bdcb6
10
CVSS 10.0/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Ultimatemember

References (6)

Release Notes https://wordpress.org/plugins/ultimate-member/#developers
Exploit https://wpscan.com/vulnerability/33f059c5-58e5-44b9-bb27-793c3cedef3b
Exploit https://www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabili...
Release Notes https://wordpress.org/plugins/ultimate-member/#developers
Exploit https://wpscan.com/vulnerability/33f059c5-58e5-44b9-bb27-793c3cedef3b
Exploit https://www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabili...
42
/ 100
moderate-risk
Severity 33/34 · Critical
Exploitability 4/34 · Minimal
Exposure 5/34 · Minimal