qKnow through 2.4.3 contains a missing authentication vulnerability that allows unauthenticated remote attackers to access /flyflow workflow integration endpoints permitted in SecurityConfig. Attackers can POST sequential userId values to /flyflow/userById or call roleAll and deptListByParentDeptId to enumerate user phone numbers, roles, and department structure.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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