Checkout Order Bump Exploit in WPFunnels WordPress Plugin
CVE-2026-79630

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
WPfunnels
Vendor
CVE Published:
4 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-79630?

The WPFunnels plugin for WordPress, prior to version 3.13.0, contains a security issue where it fails to properly verify that the product selected through a checkout order bump corresponds to the product intended for the discount. As a result, this flaw allows unauthenticated users to exploit the order bump feature, gaining unauthorized discounts on any purchasable product. This vulnerability can lead to financial losses for merchants due to incorrect pricing calculations on their transactions.

Affected Version(s)

WPFunnels 0 < 3.13.0

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-2026-79630 - Proof of Concept

References

https://wpscan.com/vulnerability/fb49c59a-f79f-495c-a23e-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
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

Aditya Gurav
WPScan
.