Verification Bypass in Paid Membership Subscriptions Plugin for WordPress
CVE-2026-90950

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Paid Membership Subscriptions
Vendor
CVE Published:
23 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90950?

The Paid Membership Subscriptions plugin for WordPress, prior to version 3.1.0, has a significant vulnerability related to the reCAPTCHA verification process. When the registration handler experiences a missing form field in the request, it fails to properly verify the reCAPTCHA. This oversight allows unauthenticated users to create new accounts without needing to pass the reCAPTCHA challenge, potentially compromising the site's security by enabling unauthorized access. It’s crucial for users of this plugin to update to the latest version to protect their platforms.

Affected Version(s)

Paid Membership Subscriptions 2.0.5 < 3.1.0

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-2026-90950 - Proof of Concept

References

https://wpscan.com/vulnerability/685f381e-97b5-4855-a0ca-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Naoki Kawahigashi
WPScan
.