CVE-2026-39366

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/WWBN/AVideo/commit/8f53e9d9c6aaa07d51ace30691981edbbfb5ca1c	Patch
https://github.com/WWBN/AVideo/security/advisories/GHSA-mmw7-wq3c-wf9p	Third Party Advisory
https://github.com/WWBN/AVideo/security/advisories/GHSA-mmw7-wq3c-wf9p	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-07 20:16

Updated : 2026-07-24 21:10

NVD link : CVE-2026-39366

Mitre link : CVE-2026-39366

CVE.ORG link : CVE-2026-39366

JSON object : View

Products Affected

wwbn

avideo

CWE

CWE-345

Insufficient Verification of Data Authenticity

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