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Missing authorization in JeecgBoot lets users remove group members

Priority MEDIUM 57CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

JeecgBoot versions through 3.9.5 contain a missing authorization check (CWE-862) in a batch endpoint that deletes user group members. An authenticated remote user with low privileges can remove members from groups maintained by administrators, without permission or tenant checks, which tampers with group membership. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to remove user group members by calling DELETE /sys/user/deleteUserGroupBatch. Attackers can supply any groupId and comma-separated userIds to delete sys_ugroup_user rows without permission or tenant checks, tampering with administrator-maintained groups.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00238 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
jeecgbootJeecgBootup to 3.9.5—No fix listedCNA
  • JeecgBoot Vendorjeecgboot Affected up to 3.9.5 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for JeecgBoot.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-11 Threatist record created from CVE-2026-108637
  2. 2026-10-11 Alias added: GHSA-26w9-3rx3-xg95
  3. 2026-10-18 CISA SSVC decision points changed
  4. 2026-10-18 Priority changed: LOW → MEDIUM

References

  • TI-2023-20232 jeecg-boot v3.5.1 was discovered to contain a SQL injection vulnerability via the title… CVSS 3.1CRITICAL 9.8
  • TI-2025-41083 JimuReport thru version 2.1.3 is vulnerable to remote code execution when processing… CVSS 3.1CRITICAL 9.8
  • TI-2024-32354 JeecgBoot v3.7.1 was discovered to contain a SQL injection vulnerability via the… CVSS 3.1CRITICAL 9.8
  • TI-2023-22545 Jeecg boot up to v3.5.3 was discovered to contain a SQL injection vulnerability via the… CVSS 3.1CRITICAL 9.8
  • TI-2023-22016 SQL injection vulnerability in jeecg-boot version 3.5.3, allows remote attackers to… CVSS 3.1CRITICAL 9.8
  • TI-2023-17367 jeecg-boot 3.5.0 and 3.5.1 have a SQL injection vulnerability the id parameter of the… CVSS 3.1CRITICAL 9.8
See all 179 →

Sources