Course-tencent-cloud before 2.0.2 contains an insecure direct object reference vulnerability that allows unauthenticated attackers to view other users' refund previews by supplying an order sn to /api/refund/confirm. Attackers can compute valid sn values from Sqids-encoded sequential order ids using the default key to disclose ordered items, prices, refund amounts, fees and deadlines.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Http/Api/Controllers/RefundController.php#L24-L33 cve-icon cve-icon
https://github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Http/Home/Controllers/RefundController.php#L49-L64 cve-icon cve-icon
https://github.com/xiaochong0302/course-tencent-cloud/commit/8e8bcb4e13795006e16d51158790ce3120c8164a cve-icon cve-icon
https://github.com/xiaochong0302/course-tencent-cloud/issues/38 cve-icon cve-icon
https://hackmd.io/@hieund/course-tencent-cloud-refund-confirm-missing-owner-check-idor cve-icon cve-icon
https://www.vulncheck.com/advisories/course-tencent-cloud-before-2.0.2-idor-via-api-refund-confirm cve-icon cve-icon
History

Sun, 15 Nov 2026 13:00:00 +0000

Type Values Removed Values Added
Description Course-tencent-cloud before 2.0.2 contains an insecure direct object reference vulnerability that allows unauthenticated attackers to view other users' refund previews by supplying an order sn to /api/refund/confirm. Attackers can compute valid sn values from Sqids-encoded sequential order ids using the default key to disclose ordered items, prices, refund amounts, fees and deadlines.
Title Course-tencent-cloud before 2.0.2 IDOR via /api/refund/confirm
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-15T12:48:22.966Z

Reserved: 2026-11-15T02:02:14.744Z

Link: CVE-2026-129469

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-15T13:17:00.280

Modified: 2026-11-15T13:17:00.410

Link: CVE-2026-129469

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses