CVE-2026-39366

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

6.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

April 07, 2026

Last Modified

April 08, 2026

CWE ID

CWE-345

Source

NVD

Vendor

WWBN

Product

AVideo

External References

https://github.com/WWBN/AVideo/commit/8f53e9d9c6aaa07d51ace30691981edbbfb5ca1c
https://github.com/WWBN/AVideo/security/advisories/GHSA-mmw7-wq3c-wf9p

CVE-2026-39366

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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