CVE-2026-16990

Payment Button for PayPal <= 1.2.3.44 - Unauthenticated Payment Price Manipulation

Published Aug 12, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
The Payment Button for PayPal WordPress plugin through 1.2.3.44 does not enforce the merchant-configured price server-side and trusts a client-supplied payment amount, allowing unauthenticated attackers to create a real PayPal order against the merchant for an arbitrary lower amount.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions payment Button For Paypal
Vendors & Products Wordpress-extensions
Wordpress-extensions payment Button For Paypal
Type Values Removed Values Added
Weaknesses CWE-20
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The Payment Button for PayPal WordPress plugin through 1.2.3.44 does not enforce the merchant-configured price server-side and trusts a client-supplied payment amount, allowing unauthenticated attackers to create a real PayPal order against the merchant for an arbitrary lower amount.
Title Payment Button for PayPal <= 1.2.3.44 - Unauthenticated Payment Price Manipulation
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Aug 12, 2026, 12:10 PM
Reserved
Jul 24, 2026, 8:50 AM
Status
Deferred
Published
Aug 12, 2026, 12:17 PM
Modified
Aug 26, 2026, 4:30 PM