Medium 5.3Published Apr 28, 2026

CVE-2026-4911Booking Package <= 1.7.06 - Unauthenticated Price Manipulation via 'amount' Parameter

Updated under an hour ago (Oct 26, 2026, 6:50 PM ET)

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It affects masaakitanaka Booking Package. Add what you run to find out whether that includes you.

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Every CVE for masaakitanaka Booking Package

Exploited in the last 30 days

The Booking Package plugin for WordPress is vulnerable to Price Manipulation in versions up to, and including, 1.7.06 This is due to the intentForStripe() function passing user-controlled $_POST['amount'] directly to the Stripe PaymentIntent API without validation, and the commitStripe() function ignoring the server-calculated amount when confirming the payment. While the server correctly calculates the booking cost via getAmount() based on services, guests, taxes, and coupons, this calculated amount is never validated against or used to update the PaymentIntent because the critical code in CreditCard.php that would include the calculated amount in the PaymentIntent update is commented out. This makes it possible for unauthenticated attackers to book services at arbitrary prices (e.g., $0.01 instead of $500.00) by manipulating the amount parameter during PaymentIntent creation and completing the booking with the fraudulent payment.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-472
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: Apr 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

masaakitanaka Booking Package masaakitanaka:booking_package (from the name)	through 1.7.06	CNA record

References

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/61d63c5a-6ca6-42d8-ab0a-152d9c95945c?source=cve
https://plugins.trac.wordpress.org/browser/booking-package/trunk/lib/Schedule.php#L8942
https://plugins.trac.wordpress.org/browser/booking-package/tags/1.7.04/lib/Schedule.php#L8948
https://plugins.trac.wordpress.org/browser/booking-package/trunk/lib/CreditCard.php#L390
https://plugins.trac.wordpress.org/browser/booking-package/tags/1.7.04/lib/CreditCard.php#L393
https://plugins.trac.wordpress.org/browser/booking-package/trunk/lib/CreditCard.php#L545
https://plugins.trac.wordpress.org/browser/booking-package/tags/1.7.04/lib/CreditCard.php#L548
https://plugins.trac.wordpress.org/browser/booking-package/trunk/lib/Schedule.php#L15151
https://plugins.trac.wordpress.org/browser/booking-package/tags/1.7.04/lib/Schedule.php#L15151
https://plugins.trac.wordpress.org/changeset?old_path=%2Fbooking-package/tags/1.7.06&new_path=%2Fbooking-package/tags/1.7.07

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.