CVE-2026-23873 HUSTOJ is Vulnerable to Stored CSV Injection (Formula Injection) in Contest Rank Export

hustoj is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training. All versions are vulnerable to CSV Injection Formula Injection through the contest rank export functionality contestrank.xls.php and admin/ranklistexport.php. The application fails to sanitize...

CVE-2026-23873

hustoj is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training. All versions are vulnerable to CSV Injection Formula Injection through the contest rank export functionality contestrank.xls.php and admin/ranklistexport.php. The application fails to sanitize...

CVE-2026-23873

CVE-2026-23873 affects HustOJ, an open-source online judge (PHP/C++, MySQL/Linux). All versions are vulnerable to CSV/Formula Injection via contest rank export (contestrank.xls.php and admin/ranklist_export.php). User input in fields like Nickname is not sanitized before exporting to an .xls file...