Executive brief
The Online Job Portal, a web application for managing job listings and applications, contains a critical security flaw in its registration process. An attacker can upload malicious files to the server because the system does not verify the type of files being submitted. This could allow an unauthorized person to take complete control of the web server, potentially leading to data theft or a total service shutdown.
Technical details
An unrestricted file upload vulnerability exists in code-projects Online Job Portal 1.0 within the /JobSeekerInsert.php component. The application fails to validate the 'txtFile' argument, which is intended for resume uploads during the job seeker registration process. Specifically, the code lacks file extension whitelisting, MIME type checking, and filename sanitization, while saving files directly to a web-accessible '/upload/' directory. A remote, unauthenticated attacker can exploit this by uploading a PHP webshell to achieve Remote Code Execution (RCE) with the privileges of the web server user. Public exploit code (PoC) using curl has been disclosed.
Affected products
- code-projects Online Job Portal 1.0
Timeline
- 2026-06-11: disclosed: Initial discovery and PoC shared on GitHub
- 2026-07-14: advisory: CVE published and NVD record created