PT-2026-138056

CVE-2026-123486

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Published

2026-11-06

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Updated

2026-11-06

Description by

CVSS 3.1
5.3
Medium
MetricsAV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
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.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Weakness enumeration
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
Related identifiers
CVE-2026-123486
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