CVE-2026-108646

Received Received - Intake

JeecgBoot Missing Authorization in SysCategoryController

Publication date: 2026-10-10

Last updated on: 2026-10-10

Assigner: VulnCheck

Description

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 Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-10

Last Modified

2026-10-10

Generated

2026-10-11

AI Q&A

2026-10-11

EPSS Evaluated

N/A

NVD

CVE-2026-108646

Affected Vendors & Products

Vendor	Product	Version / Range
jeecgboot	JeecgBoot	0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

JeecgBoot through version 3.9.5 has a missing authorization vulnerability in the SysCategoryController importExcel handler. This allows any authenticated user, even with low privileges, to import category dictionary entries by uploading crafted Excel files. Attackers can bulk insert arbitrary nodes into the system-wide sys_category dictionary, including under existing parent nodes.

Detection Guidance

This vulnerability involves unauthorized Excel imports via JeecgBoot's SysCategoryController. Check application logs for unusual importExcel requests or unexpected category entries. Monitor for POST requests to /sys/category/importExcel with file uploads from low-privileged users.

Impact Analysis

Low-privileged attackers could exploit this to insert unauthorized or malicious entries into the system's category dictionary. This may lead to data integrity issues, unauthorized access to restricted categories, or disruption of normal system operations by altering the hierarchical structure of categories.

Compliance Impact

This vulnerability could impact compliance by allowing unauthorized modifications to data categorization, potentially violating integrity and access control requirements in GDPR and HIPAA. Unauthorized changes to category structures may lead to improper data handling or exposure, risking non-compliance with data protection and security standards.

Mitigation Strategies

Upgrade JeecgBoot to version 3.9.6 or later. Implement strict access controls to restrict importExcel endpoint access to authorized users only. Review and remove any unauthorized category entries added via this vulnerability.

Hi! I’m here to help you understand CVE-2026-108646. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70