CVE-2026-123486

MediumCVSS 5.3/10Last modified Nov 11, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-367

Affected software

No affected versions have been published.

Timeline

Published: Nov 6, 2026
Last modified: Nov 11, 2026
NVD status: Deferred

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