JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the sendBusAnnouncement handler of SystemApiController that allows any authenticated user to send announcements without the required permissions. Low-privileged attackers can POST crafted bodies to /sys/api/sendBusAnnouncement with forged sender, recipients, title and content to deliver spoofed admin or system messages for phishing.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
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