{"id":"CVE-2026-108875","summary":"JeecgBoot through 3.9.5 Missing Authorization via /sys/user/addSysUserGroup","details":"JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysUserController addSysUserGroup handler that allows any authenticated user to modify user group membership. Low-privileged attackers can send POST requests with arbitrary user ids and a groupId to add any users to administrator-maintained groups without permission checks.","modified":"2026-10-12T02:32:24.310007565Z","published":"2026-10-11T14:33:37.841Z","database_specific":{"cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108875.json","cna_assigner":"VulnCheck"},"references":[{"type":"EVIDENCE","url":"https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_user_group_member_addition.py"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108875.json"},{"type":"PACKAGE","url":"https://github.com/jeecgboot/JeecgBoot"},{"type":"ARTICLE","url":"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#L799-L823"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108875"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-user-addsysusergroup"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jeecgboot/jeecgboot","events":[{"introduced":"0"},{"last_affected":"e3b9dc0aefe1943d9772b026f64ed671a7c82802"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"3.9.5"}]}}],"versions":["v3.9.5","v3.9.2","v3.9.1last","v3.9.1","v3.9.0last","v3.9.0","v3.8.3.1","v3.8.3","v3.8.2last_springboot3","v3.8.0last_springboot3","v3.7.3springboot3","v3.7.1springboot3","v3.7.0_springboot3","v3.6.2_springboot3","v3.6.0","v3.5.5last","v3.5.5","v3.5.3","v3.5.1last","v3.5.1","v3.5.0","v3.4.4last","v3.4.4","v3.4.3last","v3.4.3","v3.4.2","v3.4.0","v3.2.0","v3.1.0","v3.0.0","v3.0","v2.4.6","v2.4.5","2.4.5","v2.4.3","v2.4.2","v2.4.1","2.4.1","2.4.0","v2.3.0","2.3.0","v2.3","v2.2.1","2.2.0","v2.1.4","v2.1.3","v2.1.1","v2.1.0","v2.0.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108875.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}