Arbitrary Code Execution via File Upload in bbs 5.3

CVE-2021-43100 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

A File Upload vulnerability exists in bbs 5.3 is via TopicManageAction.java in a GetType function, which lets a remote malicious user execute arbitrary code.

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