CVE-2026-39366
CVE-2026-39366 · WWBN AVideo Affected by a PayPal IPN Replay Attack Enabling Wallet Balance Inflation via Missing Transaction Deduplication in ipn.php
This page contains facts from public vulnerability sources. Check the original advisory before updating.
WWBN AVideo is an open source video platform. In versions 26.0 and prior, the PayPal IPN v1 handler at plugin/PayPalYPT/ipn.php lacks transaction deduplication, allowing an attacker to replay a single legitimate IPN notification to repeatedly inflate their wallet balance and renew subscriptions. The newer ipnV2.php and webhook.php handlers correctly deduplicate via PayPalYPT_log entries, but the v1 handler was never updated and remains actively referenced as the notify_url for billing plans.
CVSS 6.5 · Medium · EPSS 0.2%
- Published
- Updated
Stack: php
Affected products and versions
avideo
- Versions
- <= 26.0: Affected
No fix published
wwbn/avideo Packagist
- Versions
- 10.4
- 10.8
- 11
- 11.1
- 11.1.1
- 11.5
- 11.6
- 12.4
- 14.3
- 14.3.1
- 14.4
- 18.0
- 21.0
- 22.0
- 24.0
- 25.0
- 26.0
- Affected ranges
- ECOSYSTEM: ≤ 26.0
No fix published