JeecgBoot through 3.9.5 Missing Authorization via /sys/user/deleteGroupUser
Published Oct 10, 2026 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
JeecgBoot through 3.9.5 Missing Authorization via /sys/user/deleteGroupUser
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to remove group memberships via the deleteGroupUser handler in SysUserController. Attackers can send DELETE requests with arbitrary groupId and userId values to remove any user from any administrator-maintained user group without ownership or tenant checks.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- GitHub advisory ↗
- Source repository ↗
- VulnCheck Advisory: JeecgBoot through 3.9.5 Missing Authorization via /sys/user/deleteGroupUser ↗
Record history
Published Oct 10, 2026 · Last refreshed Nov 3, 2026