CVE-2026-103382
Medium
Description
The Casso Flow WordPress plugin before 4.2.0 does not properly authenticate incoming bank-transfer payment notifications, as the token used to verify them is empty on a default installation, allowing unauthenticated attackers to forge a notification and mark any pending WooCommerce order as paid, regardless of its payment method.
SeverityMedium
CVSS5.3
Exploit probability—
ProductCasso Flow
PublishedOct 28, 2026
First seenOct 28, 2026
Weakness typeCWE-284Improper access control
How to fix
Update
- Casso Flow4.2.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Casso Flow | v < 4.2.0 | 4.2.0 |
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