Price Manipulation in Booking Package Plugin for WordPress
CVE-2026-4911

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Booking Package
Vendor
CVE Published:
28 April 2026

What is CVE-2026-4911?

The Booking Package plugin for WordPress, up to version 1.7.06, contains a vulnerability that enables unauthenticated users to manipulate the price of bookings. This occurs through the intentForStripe() function, which improperly passes user-supplied $_POST['amount'] to the Stripe PaymentIntent API without adequate validation. Furthermore, the commitStripe() function neglects to utilize the server-calculated amount, allowing attackers to create bookings at arbitrary prices. The server calculates the true cost using getAmount(), which factors in services, guests, taxes, and discounts, yet this amount is ignored in the payment process due to critical code being commented out. Consequently, an attacker can book services for a fraction of the intended cost, potentially undermining the financial integrity of the booking system.

Affected Version(s)

Booking Package 0 <= 1.7.06

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/booking-packag...
https://plugins.trac.wordpress.org/browser/booking-packag...

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

  • Vulnerability published

  • Vulnerability Reserved

Credit

momopon1415
.