Ultimate Member <= 2.1.11 - Authenticated Privilege Escalation via Profile Update

9.9
Improper Privilege Management
CVE CVE-2020-36156
CVSS 9.9 (Critical)
Publicly Published November 9, 2020
Last Updated January 22, 2024
Researcher Chloe Chamberland - Wordfence

Description

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.

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Vulnerability Details for Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin

Software Type Plugin
Software Slug ultimate-member (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.1.12, or a newer patched version
Affected Version
  • < 2.1.12
Patched Version
  • 2.1.12

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