Overview
A high-severity SQL injection vulnerability, identified as CVE-2025-13557, has been discovered in Campcodes Online Polling System version 1.0. This vulnerability allows remote attackers to execute arbitrary SQL commands by manipulating the ’email’ parameter in the /registeracc.php file. The exploit is publicly available, posing a significant risk to systems running the affected version.
Technical Details
The vulnerability resides in the /registeracc.php file, specifically within the account registration functionality. The application fails to properly sanitize user-supplied input for the ’email’ parameter. An attacker can inject malicious SQL code into this parameter, which is then executed by the database. This can lead to unauthorized data access, modification, or even complete compromise of the database server.
Specifically, the untrusted user input supplied via the `email` parameter is directly used to contruct a SQL query string without any sanitization. By injecting SQL commands within the email field, it is possible to bypass authentication, modify data, or retrieve sensitive information.
CVSS Analysis
The Common Vulnerability Scoring System (CVSS) score for CVE-2025-13557 is 7.3 (HIGH). This score reflects the following characteristics:
- Attack Vector (AV): Network (N) – The attack can be launched remotely over the network.
- Attack Complexity (AC): Low (L) – The vulnerability is easily exploitable.
- Privileges Required (PR): None (N) – No privileges are required to exploit the vulnerability.
- User Interaction (UI): None (N) – No user interaction is required to trigger the vulnerability.
- Scope (S): Unchanged (U) – An exploited vulnerability can only affect resources managed by the same security authority.
- Confidentiality Impact (C): High (H) – There is a high impact to confidentiality.
- Integrity Impact (I): High (H) – There is a high impact to integrity.
- Availability Impact (A): High (H) – There is a high impact to availability.
Possible Impact
A successful exploitation of this vulnerability can have severe consequences, including:
- Data Breach: An attacker could steal sensitive data, such as user credentials, personal information, or polling data.
- Data Manipulation: The attacker could modify or delete existing data, leading to data corruption or denial of service.
- Account Takeover: An attacker could gain unauthorized access to administrative accounts, allowing them to completely control the application.
- System Compromise: In some cases, the attacker might be able to execute arbitrary code on the server, leading to full system compromise.
Mitigation or Patch Steps
To mitigate the risk posed by CVE-2025-13557, the following steps are recommended:
- Apply the Patch: Check the Campcodes website for an official patch or update that addresses this vulnerability. Apply it immediately.
- Input Sanitization: Implement robust input validation and sanitization techniques for all user-supplied data, especially the ’email’ parameter in
/registeracc.php. Use parameterized queries or prepared statements to prevent SQL injection. - Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) to detect and block malicious requests targeting this vulnerability.
- Least Privilege: Ensure that the database user account used by the application has only the necessary privileges to perform its functions.
- Regular Security Audits: Conduct regular security audits and penetration testing to identify and address potential vulnerabilities in your application.
