CVE-2026-1118 identifies a SQL injection vulnerability in the itsourcecode Society Management System version 1.0, specifically within the /admin/add_activity.php script. The vulnerability stems from insufficient input validation or sanitization of the 'Title' parameter, which is manipulated by attackers to inject arbitrary SQL commands. This injection flaw allows remote attackers to execute unauthorized SQL queries on the backend database without requiring authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/AT:N/UI:N/PR:L). The vulnerability impacts the confidentiality, integrity, and availability of the system by potentially exposing sensitive data, modifying database contents, or disrupting service. Although the CVSS score is moderate (5.3), the presence of a public exploit increases the likelihood of exploitation. The vulnerability affects only version 1.0 of the product, and no official patches have been published yet. The attack surface is limited to administrative functions, implying that some level of privilege (low) is required, but no user interaction is needed. The vulnerability is classified as medium severity due to the combination of remote exploitability, moderate access requirements, and potential data impact. No known exploits are currently active in the wild, but the availability of a public exploit code raises the risk profile. The lack of CWE classification suggests the need for further detailed analysis, but the nature of the flaw is typical of classic SQL injection issues caused by improper input handling.

For European organizations using the itsourcecode Society Management System 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of their data, especially sensitive information managed within the society management context. Exploitation could lead to unauthorized data disclosure, data tampering, or even denial of service if database integrity is compromised. Given the administrative nature of the vulnerable endpoint, attackers gaining access could manipulate critical operational data, potentially disrupting organizational workflows. The remote exploitability without user interaction increases the threat level, as attackers can automate attacks at scale. Organizations in sectors such as local government, community management, or social services that rely on this software could face operational disruptions and reputational damage. Furthermore, compliance with European data protection regulations like GDPR could be jeopardized if personal data is exposed or altered. The absence of patches and the existence of public exploit code elevate the urgency for mitigation. While the vulnerability currently lacks widespread exploitation, the risk of targeted or opportunistic attacks remains, especially in countries with higher adoption rates or strategic interest in social management systems.

To mitigate CVE-2026-1118, European organizations should immediately implement strict input validation and sanitization on the 'Title' parameter within the /admin/add_activity.php file. Employing parameterized queries or prepared statements in the database interaction code will prevent SQL injection attacks effectively. Until an official patch is released, organizations should restrict access to the administrative interface by implementing network-level controls such as IP whitelisting, VPN access, or multi-factor authentication to reduce exposure. Regularly monitoring logs for suspicious SQL query patterns or unusual administrative activity can help detect exploitation attempts early. Conducting a thorough code review of all input handling in the application is recommended to identify and remediate similar vulnerabilities. Additionally, organizations should consider isolating the affected system within segmented network zones to limit lateral movement in case of compromise. Backup procedures should be verified and tested to ensure rapid recovery from potential data integrity incidents. Finally, staying informed on vendor updates and applying patches promptly once available is critical to long-term security.