JWT Auth Plugin for WordPress Exposed to Token Reuse Vulnerability
CVE-2026-106466

7.5HIGH

Key Information:

Vendor

WordPress
Status
Jwt Auth
Vendor
CVE Published:
9 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-106466?

The JWT Auth WordPress plugin up to version 3.0.2 suffers from a significant security issue where previously issued refresh tokens are not invalidated when users change their passwords or disconnect devices. This flaw enables an attacker who acquires a refresh token prior to these actions to continuously generate valid access tokens, effectively maintaining unauthorized access to the user’s account, including elevated privileges up to the Administrator level.

Affected Version(s)

JWT Auth 0 <= 3.0.2

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-2026-106466 - Proof of Concept

References

https://wpscan.com/vulnerability/f9223c15-09ed-4001-b1ca-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tarcísio Luchesi
WPScan
.