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CVE-2026-16990

MEDIUM 5.3 CVSS 3.1
Published
August 12, 2026
Last modified
August 26, 2026
NVD status
Deferred
Reported by
contact@wpscan.com
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown Payment Button for PayPal — Up to and including 1.2.3.44

References

  • wpscan.com https://wpscan.com/vulnerability/97c08603-c407-43b2-ab2c-e39f85e89ebe/
  • nvd.nist.gov Official NVD record