Privilege Escalation in Simple User Registration Plugin for WordPress
CVE-2026-0844

8.8HIGH

Key Information:

Vendor

WordPress

Vendor
CVE Published:
28 January 2026

What is CVE-2026-0844?

The Simple User Registration plugin for WordPress suffers from a vulnerability that allows authenticated users with minimal permissions to escalate their privileges. This occurs due to inadequate safeguards in the 'profile_save_field' function, enabling subscribers to modify their user role by manipulating the 'wp_capabilities' parameter during profile updates. Such an exploit could lead to unauthorized access and potential control over user accounts, posing a significant risk to website security.

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Affected Version(s)

Simple User Registration * <= 6.7

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

JohSka
.