A File Upload vulnerability exists in bbs 5.3 is via ForumManageAction.java in a GetType function, which lets a remote malicious user execute arbitrary code.
{ "cpe": "cpe:2.3:a:diyhi:bbs:5.3:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "5.3" }, { "last_affected": "5.3" } ], "source": "CPE_STRING" }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43103.json"