CVE-2026-108869

EUVD-2026-97043
JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to send system announcements by calling POST /sys/api/sendSysAnnouncement. Attackers can supply arbitrary title, content, fromUser and toUser values to deliver forged announcements to any users via WebSocket, WeCom, DingTalk and Feishu.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 9.8%
Common Weakness Enumeration
References
https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_sys_api_send_sys_announcement.py
https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/api/controller/SystemApiController.java#L45-L48
https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-api-sendsysannouncement