What’s Vulnerable › Vulnerabilities
CVE-2026-16990: Payment Button for PayPal <= 1.2.3.44 - Unauthenticated Payment Price Manipulation
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-12 · updated 2026-08-26
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 products
- Payment Button for PayPal: through 1.2.3.44
References
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