Executive brief
CodeAstro Simple Online Leave Management System, a web application used to manage employee leave requests, is vulnerable to a security flaw. An attacker with basic user access can exploit this to gain unauthorized access to the underlying database. This could lead to the exposure of sensitive employee information, unauthorized modification of leave records, or disruption of the management system.
Technical details
A SQL injection vulnerability exists in CodeAstro Simple Online Leave Management System 1.0 within the /SimpleOnlineLeave/admin/accept.php endpoint. The root cause is the failure to properly sanitize or parameterize the 'appid' POST parameter before using it in a database query. A remote attacker with low privileges (authenticated user) can exploit this by sending a specially crafted POST request to execute arbitrary SQL commands. Proof-of-concept exploits demonstrate that time-based blind SQL injection is possible, potentially allowing for full database extraction or modification. As of the advisory date, no official patch is confirmed, but remediation via prepared statements and input validation is recommended.
Affected products
- CodeAstro Simple Online Leave Management System 1.0
Timeline
- 2026-06-10: disclosed: Vulnerability discovered and reported on GitHub by sl1der-fr0g.
- 2026-07-13: advisory: CVE-2026-15559 published.