SQL Injection in itsourcecode Cafe Reservation Registration Component

Executive Summary

[{'type': 'paragraph', 'content': 'CVE-2026-4014 is a critical SQL injection vulnerability found in itsourcecode Cafe Reservation System version 1.0, specifically in the Registration component within the file /curvus2/signup.php.'}, {'type': 'paragraph', 'content': 'The vulnerability arises from improper handling of the "username" parameter, which is used to construct SQL commands without adequate sanitization or neutralization of special characters, leading to SQL injection.'}, {'type': 'paragraph', 'content': 'This flaw allows remote attackers to inject malicious SQL code into the username field during the signup process, enabling them to manipulate SQL queries without authentication.'}, {'type': 'paragraph', 'content': 'Exploitation techniques include Boolean-based blind SQL injection, error-based SQL injection, and time-based blind SQL injection, allowing attackers to confirm and exploit the vulnerability remotely.'}] [1, 3]

Useful 0 Not Useful 0

Impact Analysis

This vulnerability can have severe impacts including unauthorized database access, data leakage, data modification or deletion, and potential full system control by attackers.

Attackers can compromise the confidentiality, integrity, and availability of the system, potentially disrupting services and causing business continuity issues.

Since the exploit requires no authentication and can be executed remotely, it is highly accessible and dangerous.

Useful 0 Not Useful 0

Compliance Impact

I don't know

Useful 0 Not Useful 0

Detection Guidance

[{'type': 'paragraph', 'content': "The vulnerability can be detected by testing the /curvus2/signup.php endpoint for SQL injection in the 'username' parameter, which is submitted via multipart/form-data POST requests."}, {'type': 'paragraph', 'content': 'One effective method is to use automated SQL injection testing tools such as sqlmap to target the vulnerable parameter and confirm the injection point.'}, {'type': 'list_item', 'content': 'Example sqlmap command: sqlmap -u "http://target/curvus2/signup.php" --data="username=anything&other=params" --method=POST --level=5 --risk=3 --batch'}, {'type': 'list_item', 'content': 'Manual testing can include injecting SQL payloads into the username field, such as using Boolean-based blind SQL injection payloads (e.g., using MySQL RLIKE operator), error-based payloads exploiting MySQL error messages, or time-based payloads using MySQL SLEEP function to observe delays.'}, {'type': 'paragraph', 'content': 'Additionally, Google dorking can be used to identify vulnerable targets by searching for URLs containing inurl:curvus2/signup.php.'}] [1, 3]

Useful 0 Not Useful 0

Mitigation Strategies

[{'type': 'paragraph', 'content': 'Immediate mitigation steps include replacing or patching the affected component or product, as no known mitigations or countermeasures have been documented.'}, {'type': 'paragraph', 'content': 'Implement prepared statements (parameterized queries) to ensure user inputs are treated strictly as data and prevent execution of injected SQL code.'}, {'type': 'paragraph', 'content': "Apply strict input validation and filtering on the 'username' parameter to enforce expected data formats and reject malicious input."}, {'type': 'paragraph', 'content': 'Minimize database user privileges by avoiding the use of high-privilege accounts (such as root or admin) for routine database operations.'}, {'type': 'paragraph', 'content': 'Conduct regular security audits of the code and systems to detect and remediate vulnerabilities promptly.'}] [1, 2, 3]

Useful 0 Not Useful 0