---
id: CVE-2026-108647
title: >-
  JeecgBoot through 3.9.5 contains a missing authorization vulnerability that
  allows low-privileged authenticated users to create validation rules through
  the SysCheckRuleController importExcel handler
summary: >-
  JeecgBoot through 3.9.5 contains a missing authorization vulnerability that
  allows low-privileged authenticated users to create validation rules through
  the SysCheckRuleController importExcel handler. Attackers can upload a crafted
  Excel…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-862
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T22:16:40.453'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108647'
references:
  - url: >-
      https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_c084_checkrule_import_xlsx.py
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/SysCheckRuleController.java#L192-L208
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-checkrule-importexcel
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-10T22:34:13.263Z'
---

## Overview

JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to create validation rules through the SysCheckRuleController importExcel handler. Attackers can upload a crafted Excel workbook to bypass the system:checkRule:add permission and bulk-create system-wide encoding validation rules with arbitrary regular expression patterns.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.