A denial-of-service (DoS) vulnerability exists in Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2. By abusing insufficient brute-forcing defenses in the token exchange protocol, an unauthenticated attacker could disrupt transactions between the Magento merchant and PayPal.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Magento | Magento | 2.1.0 (including) | 2.1.18 (excluding) |
| Magento | Magento | 2.2.0 (including) | 2.2.9 (excluding) |
| Magento | Magento | 2.3.0 (including) | 2.3.2 (excluding) |