CVE-2026-16990

CVE-2026-16990

Medium · published August 12, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
24.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00324 · 24.2th percentile
Published
2026-08-12T16:17Z
References (1)
https://wpscan.com/vulnerability/97c08603-c407-43b2-ab2c-e39f85e89ebe/ · [email protected]
EPSS history
Timeline
  • 12 AUG 11:24Z
    Payment Button for PayPal <= 1.2.3.44 - Unauthenticated Payment Price Manipulation
    cvelistv5