CVE-2026-102366

mall4j through 4.0 Unrestricted File Upload in Admin File Endpoints

Published Sep 28, 2026 CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Gz-yami
Gz-yami mall4j
Vendors & Products Gz-yami
Gz-yami mall4j
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 29, 2026, 10:49 AM
Reserved
Sep 28, 2026, 10:50 PM
Status
Deferred
Published
Sep 29, 2026, 12:17 AM
Modified
Sep 30, 2026, 5:32 PM