Authentication Bypass in UsersWP Plugin for WordPress
CVE-2026-86814

8.1HIGH

Key Information:

Vendor

WordPress
Status
UsersWP
Vendor
CVE Published:
19 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-86814?

The UsersWP plugin for WordPress fails to ensure that a social login provider validates the ownership of an email address before using it to link to an existing account. This flaw allows attackers without authentication to log in as any user, including administrators, simply by asserting control over an email address through their social account. This vulnerability poses a critical risk to user accounts and necessitates immediate updates to protect against unauthorized access.

Affected Version(s)

UsersWP 0 < 1.5.10

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-2026-86814 - Proof of Concept

References

https://wpscan.com/vulnerability/f606cf7b-cef8-4b2c-819a-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pedro Pinho
WPScan
.