Unauthenticated Privilege Escalation in Ultimate Member Plugin for WordPress
CVE-2020-36155

10CRITICAL

Key Information:

Vendor

Wordpress
Status
Ultimate Member
Vendor
CVE Published:
4 January 2021

What is CVE-2020-36155?

The Ultimate Member plugin for WordPress is vulnerable to an unauthenticated privilege escalation attack, allowing attackers to manipulate user metadata during the registration process. By submitting specially crafted data, such as arrays for sensitive metadata, an attacker can potentially gain unauthorized roles like Administrator, compromising the site's security. It is crucial for users of the affected versions to update to version 2.1.12 or later to mitigate this significant risk.

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References

https://wordpress.org/plugins/ultimate-member/#developers
x_refsource_MISC
https://www.wordfence.com/blog/2020/11/critical-privilege...
x_refsource_MISC
https://wpscan.com/vulnerability/cf13b0f8-5815-4d27-a276-...
x_refsource_MISC

EPSS Score

55% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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