CVE-2020-36156 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://wordpress.org/plugins/ultimate-member/#developers https://wpscan.com/vulnerability/dd4c4ece-7206-4788-8747-f0c0f3ab0a53 https://www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabilities-affect-100k-sites-using-ultimate-member-plugin/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8