Course-tencent-cloud before 2.0.2 IDOR via /api/refund/confirm

Summary

CVECVE-2026-129469
StatePUBLISHED
AssignerVulnCheck
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-15 13:17:00 UTC
Updated2026-11-15 13:17:00 UTC
DescriptionCourse-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.

Risk And Classification

Primary CVSS: v4.0 6.9 MEDIUM from [email protected]

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/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

Problem Types: CWE-639 | CWE-639 Authorization Bypass Through User-Controlled Key


VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary6.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS6.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.1[email protected]Primary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNACVSS5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/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

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Xiaochong0302 Course-tencent-cloud affected 1.0.0-beta1 2.0.2 semver Not specified

References

ReferenceSourceLinkTags
github.com/xiaochong0302/course-tencent-cloud/issues/38 [email protected] github.com
hackmd.io/@hieund/course-tencent-cloud-refund-confirm-missing-owner-che... [email protected] hackmd.io
www.vulncheck.com/advisories/course-tencent-cloud-before-2.0.2-idor-via-api-ref... [email protected] www.vulncheck.com
github.com/xiaochong0302/course-tencent-cloud/commit/8e8bcb4e13795006e16... [email protected] github.com
github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Http/Api/C... [email protected] github.com
github.com/xiaochong0302/course-tencent-cloud/blob/v2.0.1/app/Http/Home/... [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: hieuPenguinnn (en)

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