JeecgBoot Missing Authorization in Template Notification Delivery

Executive Summary

JeecgBoot through version 3.9.5 has a missing authorization vulnerability. Authenticated users can exploit it by sending POST requests to /sys/api/sendTemplateAnnouncement to create template notifications. Attackers can forge sender details, recipient lists, titles, and templates to make messages appear as if they come from admin or system accounts.

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Detection Guidance

Check for unauthorized POST requests to /sys/api/sendTemplateAnnouncement. Monitor logs for suspicious template notification activity or unusual sender/recipient patterns. Verify if low-privileged users can access this endpoint.

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Impact Analysis

Low-privileged attackers could send fraudulent messages that appear legitimate, potentially tricking users into disclosing sensitive information or performing unauthorized actions. This could lead to phishing attacks, misinformation spread, or unauthorized access to systems if users trust the forged sender details.

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Compliance Impact

This vulnerability allows low-privileged attackers to send forged notifications appearing to come from admin or system accounts. This could enable phishing attacks or unauthorized data access, potentially violating GDPR's integrity and confidentiality requirements or HIPAA's access controls and audit safeguards.

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Mitigation Strategies

Apply vendor patches or updates to JeecgBoot 3.9.5 or later. Restrict access to the /sys/api/sendTemplateAnnouncement endpoint via authentication and authorization controls. Review and audit user permissions to prevent unauthorized access.

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