CVE-2026-108656

JeecgBoot v3.9.2 is vulnerable to Remote command execution. The CodeNode component of the AI Flow module supports Groovy script execution. While the `SecurityCheck` class employs a blacklist mechanism to intercept dangerous calls, the dynamic nature of Groovy allows this blacklist to be completely bypassed through string concatenation and reflection.

An issue in JeecgBoot v.3.9.2 allows a remote attacker to execute arbitrary code via the files Parameter in JeecgBoot AI Chat Module.

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysUserController getUserDetailByUserId handler that allows any authenticated user to read other users' details. Low-privileged attackers can supply arbitrary userId values to retrieve real names, usernames, emails, phone numbers, birthdays, employee numbers, department paths and posts.

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysDepartRoleController exportXls handler that allows any authenticated user to export department roles. Low-privileged attackers holding only the default minimal role can call /sys/sysDepartRole/exportXls to download all sys_depart_role records, including role names, codes, descriptions and creating users.

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysCommentController exportXls handler that allows any authenticated user to export all comments. Low-privileged attackers can request /sys/comment/exportXls to download every sys_comment row, including comment text and user ids on records they cannot access.

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysUserController queryChildrenByUsername handler that allows any authenticated user to retrieve other users' account records. Low-privileged attackers can supply arbitrary userId values to obtain names, emails, phone numbers, employee numbers, department assignments, and staff lists of departments those users head.

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysMessageController delete handler that allows low-privileged authenticated users to delete message records. Attackers can send DELETE requests with arbitrary id values to remove any sys_sms row, erasing records of sent notifications without ownership checks.

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysMessageTemplateController delete handler that allows any authenticated user to delete message templates. Low-privileged attackers can obtain template ids from the unguarded list endpoint and delete shipped notification templates, causing system notices and workflow reminders to fail.

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the editThirdAppConfig handler that allows any authenticated user to modify third-party application configurations. Low-privileged attackers can replace client id, client secret, agent id and corp id of DingTalk, WeCom or Feishu integrations to redirect directory synchronisation and messaging to attacker-controlled applications or break them.

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysPositionController removeUserPosition handler that allows any authenticated user to remove position members. Low-privileged attackers can send DELETE requests with arbitrary userIds and positionId values to delete sys_user_position rows, detaching users from positions without logging.