mall4j through 4.0 contains an unrestricted file upload vulnerability in FileController endpoints that lack authorization checks and accept arbitrary file types without validation. Attackers with any authenticated token can upload HTML or SVG files that execute scripts in administrator browsers when accessed from the local storage path, resulting in stored cross-site scripting.

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Fixes

Solution

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Workaround

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History

Tue, 29 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Gz-yami
Gz-yami mall4j
Vendors & Products Gz-yami
Gz-yami mall4j

Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 28 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Description mall4j through 4.0 contains an unrestricted file upload vulnerability in FileController endpoints that lack authorization checks and accept arbitrary file types without validation. Attackers with any authenticated token can upload HTML or SVG files that execute scripts in administrator browsers when accessed from the local storage path, resulting in stored cross-site scripting.
Title mall4j through 4.0 Unrestricted File Upload in Admin File Endpoints
Weaknesses CWE-434
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-29T10:49:19.824Z

Reserved: 2026-09-28T22:50:19.946Z

Link: CVE-2026-102366

cve-icon Vulnrichment

Updated: 2026-09-29T10:49:16.544Z

cve-icon NVD

Status : Deferred

Published: 2026-09-29T00:17:03.917

Modified: 2026-09-30T17:32:07.107

Link: CVE-2026-102366

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-29T13:19:48Z

Weaknesses