Auth bypass in Guchengwuyue Yshopmall
CVE-2026-110120
Yshopmall through 2.0.0 contains an insecure direct object reference vulnerability in the after-sales API that allows authenticated members to access other members' data by supplying their after-sales id and orderCode. Attackers can call deleteAfterSalesOrder, addLogisticsInformation, or GET /applyForAfterSales/{key} to view other members' order items and tamper with or delete their after-sales records.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/yshopmall-member-api-ownership-idor (third-party-advisory)
- github.com/guchengwuyue/yshopmall/blob/d1b20a2d76dfd98985410116db3aca8aca193b26… (technical-description)
- github.com/guchengwuyue/yshopmall/blob/d1b20a2d76dfd98985410116db3aca8aca193b26… (technical-description)
- www.vulncheck.com/advisories/yshopmall-through-2.0.0-idor-via-after-sales-api-i… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110120?
- CVE-2026-110120 is a medium-severity vulnerability in Guchengwuyue Yshopmall, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-10-13.
- How severe is CVE-2026-110120?
- Medium severity. CVSS v3 base score is 5.4 out of 10.