| Título | PublicCMS 5 Improper Access Controls |
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| Descrição | `TradePaymentController.cancel` accept a `paymentId` from the request and invoke service-layer state changes without verifying that the payment belongs to the authenticated user. Any logged-in user can cancel or initiate a refund for another user's payment if they know the `paymentId`. Poc：1. Use a test account Creating a payment, get `paymentId` ；2. Login as a low-privileged user ,extract `_csrf` token from cookie value: `PUBLICCMS_USER=<userId>_<csrfToken>`；3. The payment status changes (cancelled) even though the attacker does not own the payment.
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| Fonte | ⚠️ https://github.com/sanluan/PublicCMS/issues/108 |
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| Utilizador | AliceS614 (UID 94277) |
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| Submissão | 21/01/2026 13h55 (há 9 meses) |
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| Moderação | 05/02/2026 20h25 (15 days later) |
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| Estado | Aceite |
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| Entrada VulDB | 344592 [Sanluan PublicCMS até 4.0.202506.d/5.202506.d/6.202506.d Trade Payment TradePaymentService.java paid paymentId Elevação de Privilégios] |
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| Pontos | 20 |
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