CVE-2026-11964
User Registration & Membership < 5.2.2 - Unauthenticated PayPal Webhook Signature Verification Bypass Leading to Membership Activation
Vexday Risk Score
25Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS 9.1EPSS —KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
13 jul 2026Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
The User Registration & Membership WordPress plugin before 5.2.2 does not verify the authenticity of incoming payment-provider webhook notifications before acting on them, allowing unauthenticated attackers to forge a payment-approved event and activate a paid membership subscription without completing a real payment.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Produtos afetados
Unknown · User Registration & Membership