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EUVD-2026-103011 · Published Oct 16, 2026 · 1w ago
Roncoo-pay through commit 9428382 contains a missing authorization vulnerability in F2FPayController.orderQuery that allows unauthenticated attackers to retrieve payment records by supplying a trxNo parameter. Attackers can guess transaction numbers, a '7' prefix plus a snowflake ID, to obtain the full serialized payment record of any merchant.
Weaknesses
CWE-306
CVSS scores
- v4.08.2
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - v3.15.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
MITRE ATT&CK
InferredWhere this vulnerability fits in an attack
Initial Access
References
- https://github.com/roncoo/roncoo-pay/blob/9428382af21cd5568319eae7429b7e1d0332ff40/roncoo-pay-web-gateway/src/main/java/com/roncoo/pay/controller/F2FPayController.java#L75-L79
- https://hackmd.io/@hieuPenguinnn/roncoo-pay-f2f-order-query-unauth-record-disclosure
- https://www.vulncheck.com/advisories/roncoo-pay-through-commit-9428382-information-disclosure-via-f2fpay-order-query
Potentially impacted assets
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