Privilege Escalation Vulnerability in User Registration & Membership Plugin by WordPress
CVE-2026-80071

7.2HIGH

Key Information:

Vendor

WordPress
Status
User Registration & Membership
Vendor
CVE Published:
13 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-80071?

The User Registration & Membership plugin for WordPress prior to version 5.2.8 contains a vulnerability that inadequately enforces role assignments. This flaw enables authenticated users holding Author-level access or higher to improperly assign themselves elevated permissions, including Administrator rights. As a result, these users can leverage this loophole to gain control over membership plans and manage user roles, posing significant risks to site integrity and data security.

Affected Version(s)

User Registration & Membership 0 < 5.2.8

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-80071 - Proof of Concept

References

https://wpscan.com/vulnerability/a4fbdeea-0d3b-466b-b4b6-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Baikuya
WPScan
.