Guest Checkout Email Control Flaw in FluentCart by WordPress
CVE-2026-100143

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Fluentcart A New Era Of Ecommerce
Vendor
CVE Published:
30 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-100143?

The FluentCart plugin for WordPress prior to version 1.6.5 exhibits a security weakness in its guest checkout functionality. Specifically, it fails to validate control over the email address used during the guest checkout process. This oversight allows malicious users who are aware of an existing guest customer's email to gain unauthorized access to a logged-in account associated with that email, compromising the customer's stored data and personal information.

Affected Version(s)

FluentCart A New Era of eCommerce 0 < 1.6.5

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-2026-100143 - Proof of Concept

References

https://wpscan.com/vulnerability/86c69e28-bdd2-4027-a045-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
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

Mutantgun
WPScan
.