Medium severity6.5NVD Advisory· Published Apr 7, 2026· Updated Apr 22, 2026
CVE-2026-39366
CVE-2026-39366
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
wwbn/avideoPackagist | <= 26.0 | — |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/WWBN/AVideo/commit/8f53e9d9c6aaa07d51ace30691981edbbfb5ca1cnvdPatchWEB
- github.com/WWBN/AVideo/security/advisories/GHSA-mmw7-wq3c-wf9pnvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-mmw7-wq3c-wf9pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-39366ghsaADVISORY
News mentions
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