Ultimate Member <= 2.1.11 - Unauthenticated Privilege Escalation via User Meta

Improper Privilege Management
CVE CVE-2020-36155
CVSS Critical (10)
Publicly Published November 9, 2020
Last Updated January 22, 2024
Researcher Chloe Chamberland
Description

An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka Unauthenticated Privilege Escalation via User Meta. An attacker could supply an array parameter for sensitive metadata, such as the wp_capabilities user meta that defines a user's role. During the registration process, submitted registration details were passed to the update_profile function, and any metadata was accepted, e.g., wp_capabilities[administrator] for Administrator access.

References

1 affected software package

Software Type Plugin
Software Slug ultimate-member (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 2.1.12
Patched Version
  • 2.1.12
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