5.3
Medium
CVE-2026-16962 The Tamara Checkout WordPress plugin through 1.9.9.20 does not verify the order key, a nonce, or any capability on its…
Description
The Tamara Checkout WordPress plugin through 1.9.9.20 does not verify the order key, a nonce, or any capability on its public payment cancel/fail return URLs, changing a WooCommerce order's status based solely on an attacker-supplied numeric order id, so an unauthenticated attacker can cancel or fail arbitrary orders store-wide by enumerating ids (triggering downstream stock-release and notification side-effects).
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Tamara Checkout 1.9 | earliest → 1.9.9.20 | No fix stated |