CVE-2026-129469

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.

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

• 6.9CVSS 4.0, Mediumfrom the CNA (VulnCheck)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
• 5.3CVSS 3.1, Mediumfrom the CNA (VulnCheck)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Timeline

1. 15 Nov 2026 Published

Weakness

• CWE-639

References

• hackmd.iothird-party-advisory
• github.comissue-tracking
• github.compatch
• github.comtechnical-description
• github.comtechnical-description
• VulnCheck Advisory: Course-tencent-cloud before 2.0.2 IDOR via /api/refund/confirmthird-party-advisory