Executive Summary

CVE-2026-5649 is a SQL Injection vulnerability found in the Online Application System for Admission version 1.0, specifically in the admission form processing endpoint at /enrollment/admsnform.php.

The vulnerability arises because the 'detid' parameter, which is submitted via HTTP POST, is directly concatenated into SQL queries without proper input validation or sanitization.

This unsafe SQL query construction allows attackers to inject arbitrary SQL code, potentially manipulating the database.

For example, an attacker can submit a payload that causes the database to execute a time delay, confirming the injection is successful.

Useful 0 Not Useful 0

Impact Analysis

Successful exploitation of this vulnerability can allow attackers to execute arbitrary SQL commands on the backend database.

• Extract sensitive data from the database.
• Bypass authentication mechanisms.
• Modify or delete database records.
• Escalate privileges within the system.
• Potentially achieve full compromise of the backend database depending on database user permissions.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability can be detected by testing the vulnerable endpoint `/OnlineApplicationSystem_PHP/enrollment/admsnform.php` for SQL injection via the `detid` parameter submitted through HTTP POST.

A common detection method is to use a time-based SQL injection payload to observe if the server response is delayed, indicating successful injection.

For example, submitting the following payload in the `detid` POST parameter can confirm the vulnerability by causing a delay of approximately 20 seconds:

• detid='+(select*from(select(sleep(20)))a)+'

You can use tools like curl or Burp Suite to send this POST request and observe response times.

Example curl command to test the vulnerability:

• curl -X POST -d "detid='+(select*from(select(sleep(20)))a)+'" https://targetsite/OnlineApplicationSystem_PHP/enrollment/admsnform.php -v

Useful 0 Not Useful 0

Mitigation Strategies

Immediate mitigation steps include:

• Implement prepared statements with parameterized queries to safely handle the `detid` parameter instead of directly concatenating user input into SQL queries.
• Validate and sanitize all user inputs to ensure they conform to expected formats, such as numeric IDs.
• Apply the principle of least privilege to the database user accounts to limit the impact of any potential exploitation.
• Conduct regular security testing, including code audits and penetration testing, to identify and fix similar vulnerabilities.

Useful 0 Not Useful 0

Compliance Impact

The SQL Injection vulnerability in the Online Application System for Admission allows attackers to execute arbitrary SQL commands, extract sensitive data, and potentially fully compromise the backend database. Such unauthorized access and data manipulation can lead to breaches of confidentiality, integrity, and availability of personal and sensitive information.

This kind of vulnerability can negatively impact compliance with common standards and regulations such as GDPR and HIPAA, which require protection of personal data and sensitive health information. Exploitation of this vulnerability could result in unauthorized disclosure or alteration of protected data, leading to regulatory violations, legal consequences, and loss of trust.

Useful 0 Not Useful 0