Jiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file deletion via the web/polygon/problem/deletefile?id=1&name=../ substring.
{ "versions": [ { "introduced": "0" }, { "last_affected": "0.8.0" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17537.json"