HUSTOJ Admin users can zip-slip problem_import_qduoj.php, planting PHP files in webroot for RCE

A user with administrative privileges can abuse the problemimportqduoj.php CGI script using a crafted zip file zip-slip to traverse backwards through the filesystem, then to the webroot, where they can extract a PHP file that spawns a shell to get full RCE in the context of the webserver. Module...

CVE-2026-24479

HUSTOF is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training. Prior to version 26.01.24, the problemimportqduoj.php and problemimporthoj.php modules fail to properly sanitize filenames within uploaded ZIP archives. Attackers can craft a malicious ZIP file...

CVE-2026-24479

HUSTOF is an open source online judge based on PHP/C++/MySQL/Linux for ACM/ICPC and NOIP training. Prior to version 26.01.24, the problemimportqduoj.php and problemimporthoj.php modules fail to properly sanitize filenames within uploaded ZIP archives. Attackers can craft a malicious ZIP file...