Description
WWBN AVideo 29.0 through 29.4.0 contains a race condition vulnerability in plugin/PayPalYPT/ipn.php that allows attackers to bypass IPN replay protection due to a non-atomic deduplication check and insert. Attackers can concurrently replay a captured valid recurring-payment notification so both requests pass isRecurringPaymentIdUsed(), obtaining duplicate wallet credits and subscription renewals.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WWBN | AVideo | 29.0 – ≤ 29.4.0 | — |
References
- GitHub Security Advisory (GHSA-q77r-9mjq-mjw6) vendor-advisory
- VulnCheck Advisory: WWBN AVideo 29.0 through 29.4.0 Race Condition in PayPal IPN Deduplication via ipn.php third-party-advisory