CVE-2026-108873: JeecgBoot through 3.9.5 Missing Authorization via /sys/user/doUpdateDepartInfo

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-11 · updated 2026-10-13
Weakness: CWE-862

Description

JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to modify any department by calling PUT /sys/user/doUpdateDepartInfo. Attackers can supply a department id to rename or re-parent it and replace or remove its department heads without ownership or tenant checks.

Affected products

JeecgBoot: through 3.9.5

References

https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_sys_user_update_depart_info.py
https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/SysUserController.java#L1996-L2000
https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-user-doupdatedepartinfo

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