Arbitrary file upload in Guchengwuyue Yshopmall
CVE-2026-2146
A security flaw has been discovered in guchengwuyue yshopmall up to 1.9.1. This affects the function updateAvatar of the file /api/users/updateAvatar of the component co.yixiang.utils.FileUtil. Performing a manipulation of the argument File results in unrestricted upload. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (22.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Guchengwuyue Yshopmall — versions 1.9.0, 1.9.1
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/guchengwuyue/yshopmall/issues/40 (issue-tracking, Exploit, Issue Tracking)
- github.com/guchengwuyue/yshopmall/issues/40 (issue-tracking, Exploit, exploit, Issue Tracking)
- github.com/guchengwuyue/yshopmall/ (Product, product)
Frequently asked questions
- What is CVE-2026-2146?
- CVE-2026-2146 is a medium-severity vulnerability in Guchengwuyue Yshopmall, classified under Improper Access Control. CVSS score: 6.3/10. Published 2026-02-08.
- How severe is CVE-2026-2146?
- Medium severity. CVSS v3 base score is 6.3 out of 10.