CVE-2026-1119 identifies a SQL injection vulnerability in itsourcecode Society Management System version 1.0, located in the /admin/delete_activity.php script. The vulnerability is triggered by manipulation of the activity_id parameter, which is not properly sanitized or validated before being used in SQL queries. This allows an unauthenticated remote attacker to inject malicious SQL code, potentially enabling unauthorized data retrieval, modification, or deletion within the backend database. The vulnerability does not require user interaction or privileges, making it easier to exploit remotely. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the network attack vector, low complexity, no authentication, and partial impact on confidentiality, integrity, and availability. Although no active exploits have been observed in the wild, published exploit code increases the likelihood of exploitation attempts. The affected product is niche software used for society or community management, which may store sensitive personal or organizational data. The lack of available patches necessitates immediate mitigation through secure coding practices such as input validation, use of prepared statements, and restricting access to the vulnerable admin endpoint. This vulnerability exemplifies the risks posed by insufficient input sanitization in web applications, especially in administrative modules accessible over the network.

For European organizations using the itsourcecode Society Management System 1.0, this vulnerability could lead to unauthorized access to sensitive data stored within the system's database, including personal information of society members or organizational records. Attackers could manipulate or delete critical data, disrupting administrative operations and potentially causing reputational damage. The remote, unauthenticated nature of the exploit increases the risk of widespread attacks if the software is exposed to the internet. Confidentiality could be compromised by data leakage, integrity by unauthorized data modification, and availability by deletion or corruption of records. Given the medium severity, the impact is significant but not catastrophic; however, for organizations relying heavily on this system for community management, the disruption could be substantial. Additionally, exploitation could serve as a foothold for further network intrusion if attackers leverage the compromised system to pivot internally. The absence of known active exploits currently limits immediate impact but the published exploit code raises the risk of imminent attacks.

1. Immediately restrict network access to the /admin/delete_activity.php endpoint, ideally limiting it to trusted IP addresses or internal networks only. 2. Implement input validation and sanitization on the activity_id parameter to ensure only valid numeric or expected values are accepted. 3. Refactor the backend code to use parameterized queries or prepared statements to prevent SQL injection. 4. Monitor logs for unusual or suspicious requests targeting the vulnerable endpoint. 5. If possible, upgrade to a patched version of the software once available or contact the vendor for security updates. 6. Employ Web Application Firewalls (WAFs) with rules to detect and block SQL injection attempts targeting this parameter. 7. Conduct security audits and penetration testing on the Society Management System to identify and remediate other potential vulnerabilities. 8. Educate administrators about the risks of exposing administrative interfaces to the internet and enforce strong access controls. 9. Backup critical data regularly to enable recovery in case of data tampering or deletion. 10. Consider isolating the affected system within a segmented network zone to limit lateral movement if compromised.