Authorization Bypass Vulnerability in Ultimate Member Plugin by Ultimate Member
CVE-2026-96451

8.8HIGH

Key Information:

Vendor

WordPress

Vendor
CVE Published:
3 October 2026

What is CVE-2026-96451?

A vulnerability exists in the Ultimate Member plugin which allows attackers to bypass authorization controls via user-controlled keys. This flaw can lead to privilege escalation, enabling unauthorized access to user accounts and sensitive information. The affected versions range from n/a to 2.13.1, potentially impacting a wide range of WordPress setups that utilize this plugin. It is crucial for users and administrators to apply security patches and update to secure versions to mitigate risks associated with this vulnerability.

Affected Version(s)

Ultimate Member 0 <= 2.13.1

References

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Intrudify | Patchstack Bug Bounty Program
.