CVE-2025-13557 identifies a SQL injection vulnerability in Campcodes Online Polling System version 1.0, located in the /registeracc.php script. The vulnerability arises from improper sanitization of the 'email' parameter, allowing an attacker to inject malicious SQL code remotely without authentication or user interaction. This injection can manipulate backend database queries, potentially exposing sensitive voter registration data, altering records, or enabling further attacks such as privilege escalation or data exfiltration. The vulnerability has a CVSS 4.0 base score of 6.9, reflecting medium severity due to its network attack vector, low complexity, and no required privileges or user interaction, but limited impact on confidentiality, integrity, and availability. Although no exploits are currently reported in the wild, the public disclosure increases the risk of exploitation by attackers. The affected product is used for online polling, which may be critical in electoral processes or public opinion surveys. The lack of available patches necessitates immediate mitigation through secure coding practices, such as parameterized queries and input validation, to prevent SQL injection. Monitoring logs for suspicious activity on /registeracc.php and restricting access to trusted IPs can further reduce risk. Organizations should also prepare incident response plans in case of exploitation.

For European organizations, the impact of this vulnerability can be significant, especially for governmental bodies, political parties, or institutions relying on Campcodes Online Polling System for electoral or public consultation processes. Exploitation could lead to unauthorized access to voter registration data, manipulation of poll results, or disruption of polling services, undermining trust in democratic processes. Data confidentiality and integrity are at risk, potentially exposing personal data protected under GDPR, leading to legal and reputational consequences. Availability impact is limited but could occur if attackers manipulate database queries to cause service disruptions. The ease of remote exploitation without authentication increases the threat level. Organizations in Europe must consider the sensitivity of polling data and the potential for targeted attacks during election cycles or politically sensitive periods. The medium severity rating suggests a moderate but actionable risk that should be addressed promptly to avoid escalation.

1. Implement immediate input validation and sanitization on the 'email' parameter in /registeracc.php to block malicious SQL code. 2. Refactor the affected code to use parameterized queries or prepared statements to eliminate SQL injection vectors. 3. Restrict access to the /registeracc.php endpoint via firewall rules or IP whitelisting, limiting exposure to trusted sources. 4. Monitor web server and database logs for unusual query patterns or repeated failed attempts targeting the email parameter. 5. Conduct a thorough code review of the entire application to identify and remediate other potential injection points. 6. If patches become available from Campcodes, apply them promptly. 7. Educate developers and administrators on secure coding practices and the risks of SQL injection. 8. Implement Web Application Firewalls (WAF) with rules to detect and block SQL injection attempts targeting this endpoint. 9. Prepare incident response procedures specific to data breaches or manipulation related to polling data. 10. Consider isolating the polling system database with strict access controls and encryption to limit damage in case of exploitation.