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CVE-2020-36157

CRITICAL
9.8
CVSS Score
Published: January 4, 2021 at 05:22 PM UTC
Updated: June 17, 2026 at 03:14 AM UTC
1 product affected across 1 vendorUltimate Member

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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ultimate Member· Ultimatememberwordpress-plugin
95%
v < 2.1.12
Affected range stops below 2.1.12, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://wordpress.org/plugins/ultimate-member/#developers
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://wpscan.com/vulnerability/33f059c5-58e5-44b9-bb27-793c3cedef3b
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabilities-affect-100k-sites-using-ultimate-member-plugin/

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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