CVE-2026-1119 identifies a SQL injection vulnerability in itsourcecode Society Management System version 1.0, specifically within the /admin/delete_activity.php script. The vulnerability arises from improper sanitization or validation of the activity_id parameter, which is directly incorporated into SQL queries. This allows an unauthenticated remote attacker to inject malicious SQL code, potentially manipulating the backend database. The attack vector requires no authentication or user interaction, making it highly accessible to threat actors. The CVSS 4.0 base score of 6.9 reflects a medium severity, considering the vulnerability's impact on confidentiality, integrity, and availability, albeit with limited scope and no privilege requirements. Exploitation could lead to unauthorized data disclosure, data tampering, or deletion of records, severely affecting the reliability and trustworthiness of the system. Although no confirmed exploits are reported in the wild, published proof-of-concept exploits increase the likelihood of future attacks. The vulnerability affects only version 1.0 of the software, and no official patches have been released yet. The lack of patches necessitates immediate mitigation through secure coding practices, such as parameterized queries and input validation, as well as restricting administrative access to trusted users and networks.

For European organizations using the itsourcecode Society Management System 1.0, this vulnerability poses significant risks to the confidentiality, integrity, and availability of sensitive community or society management data. Exploitation could lead to unauthorized access to personal or organizational data, manipulation or deletion of records, and potential disruption of society management operations. This could result in reputational damage, regulatory non-compliance (especially under GDPR), and operational downtime. Given the remote and unauthenticated nature of the exploit, attackers can easily target exposed administrative interfaces. Organizations managing large or sensitive datasets related to community activities, memberships, or events are particularly vulnerable. The medium severity rating suggests a moderate but tangible risk, warranting prompt attention to prevent escalation or lateral movement within networks.

1. Immediately review and sanitize all inputs, especially the activity_id parameter in /admin/delete_activity.php, using strict input validation techniques. 2. Refactor the vulnerable code to use parameterized queries or prepared statements to prevent SQL injection. 3. Restrict access to the administrative interface by implementing network-level controls such as VPNs, IP whitelisting, or firewall rules. 4. Monitor logs for suspicious activity related to the delete_activity endpoint to detect potential exploitation attempts. 5. If possible, isolate the Society Management System from critical infrastructure to limit impact in case of compromise. 6. Engage with the vendor or community to obtain or develop official patches or updates addressing this vulnerability. 7. Educate administrators and developers about secure coding practices and the risks of SQL injection. 8. Conduct regular security assessments and penetration testing focusing on web application vulnerabilities.