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[ CVE-2026-102366 · Published 29 Sep 2026 ]

Vulnerability in gz-yami mall4j

CVSS 4.4 EPSS <1%No fix listed yet

[ Why it matters ]Priority signals

  • Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References