JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysCategoryController importExcel handler that allows any authenticated user to import category dictionary entries. Low-privileged attackers can upload crafted Excel workbooks to bulk insert arbitrary nodes into the system-wide sys_category dictionary, including under existing parent nodes.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
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