| 제목 | PublicCMS 5 Improper Access Controls |
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| 설명 | `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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| 원천 | ⚠️ https://github.com/sanluan/PublicCMS/issues/108 |
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| 사용자 | AliceS614 (UID 94277) |
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| 제출 | 2026. 01. 21. PM 01:55 (5 개월 ago) |
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| 모더레이션 | 2026. 02. 05. PM 08:25 (15 days later) |
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| 상태 | 수락 |
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| VulDB 항목 | 344592 [Sanluan PublicCMS 까지 4.0.202506.d/5.202506.d/6.202506.d Trade Payment TradePaymentService.java paid paymentId 권한 상승] |
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| 포인트들 | 20 |
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