CVE-2026-108637
JeecgBoot through 3.9.5 Missing Authorization via deleteUserGroupBatch Endpoint
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 10, 2026
- Updated
- Oct 18, 2026
- Reserved
- Oct 10, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
JeecgBootjeecgboot |
|
References
- Researcher Proof of Conceptexploit
- Vulnerable Code (v3.9.5)technical-description
- VulnCheck Advisory: JeecgBoot through 3.9.5 Missing Authorization via deleteUserGroupBatch Endpointthird-party-advisory
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