CVE-2019-17538: Jnoj Jiangnan Online Judge

High severity, CVSS 7.5. EPSS: 11.3% chance of exploitation in the next 30 days.

Jiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file reading via the web/polygon/problem/viewfile?id=1&name=../ substring.

Affected products

• Jnoj Jiangnan Online Judge: version 0.8.0 only

Published 2019-10-13. Last modified 2026-06-17.