Cross-account balance deduction via unchecked member ID
Published Dec 25, 2025 · Updated Dec 25, 2025
Improper authorization in Youlai Tech youlai-mall 1.0.0 and 2.0.0 allows remote authenticated users to deduct another member's balance. MemberController.deductBalance accepts the memberId path value and passes it to the balance update without comparing it with the logged-in member or enforcing a role check. A valid App bearer token and a known or discoverable victim memberId are required, and exploitation writes an unauthorized lower balance to that account.
Summary
What happened
Improper authorization in Youlai Tech youlai-mall 1.0.0 and 2.0.0 allows remote authenticated users to deduct another member's balance. MemberController.deductBalance accepts the memberId path value and passes it to the balance update without comparing it with the logged-in member or enforcing a role check. A valid App bearer token and a known or discoverable victim memberId are required, and exploitation writes an unauthorized lower balance to that account.
The record
- CVE
- CVE-2025-15085
- Published
- Dec 25, 2025
- Updated
- Dec 25, 2025
- Vendor
- Youlai Tech
- Product
- youlai-mall
- Classifications
- CWE-266, CWE-863, CWE-285, T1565.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 25, 2025CVE publishedPublication date reported by the CVE source.
- Dec 25, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.0
- Affected versionversion=2.0.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Authenticated cross-account balance-deduction proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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