CVE-2026-2115 identifies a SQL injection vulnerability in the itsourcecode Society Management System version 1.0, specifically within the /admin/delete_expenses.php endpoint. The vulnerability stems from improper handling of the 'expenses_id' parameter, which is susceptible to injection of arbitrary SQL commands. This flaw allows unauthenticated remote attackers to manipulate backend database queries, potentially leading to unauthorized data retrieval, modification, or deletion. The vulnerability does not require any user interaction or privileges, making it highly accessible to attackers. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the network attack vector, low complexity, and no required authentication. While no active exploits have been observed in the wild, the availability of proof-of-concept exploit code increases the likelihood of future attacks. The affected product is niche software used for managing society or community expenses, which may be deployed by local organizations, housing societies, or community groups. The lack of official patches or vendor advisories necessitates immediate mitigation through secure coding practices such as input validation and use of parameterized queries. Additionally, restricting access to the administrative interface and monitoring for suspicious database activity are critical. This vulnerability exemplifies the risks posed by legacy or less commonly maintained software in organizational environments.

For European organizations using the itsourcecode Society Management System 1.0, this vulnerability poses significant risks to the confidentiality, integrity, and availability of financial and administrative data. Exploitation could allow attackers to extract sensitive information such as financial records, manipulate expense data, or disrupt system operations by deleting or corrupting database entries. This could lead to financial losses, reputational damage, and regulatory non-compliance, especially under GDPR requirements for data protection. Community organizations and housing societies relying on this software may face operational disruptions, undermining trust among members. The remote and unauthenticated nature of the exploit increases exposure, particularly if the administrative interface is accessible over the internet without adequate network controls. Although the software’s niche market limits widespread impact, targeted attacks against vulnerable deployments in Europe could have localized but severe consequences. The availability of exploit code further elevates the risk of automated or opportunistic attacks.

1. Immediately implement input validation and sanitization on the 'expenses_id' parameter to prevent SQL injection. 2. Refactor the affected code to use parameterized queries or prepared statements instead of dynamic SQL concatenation. 3. Restrict access to the /admin/delete_expenses.php endpoint by enforcing strong authentication and network-level controls such as VPNs or IP whitelisting. 4. Monitor database logs and application logs for unusual queries or access patterns indicative of exploitation attempts. 5. If vendor patches are unavailable, consider isolating the application behind a web application firewall (WAF) configured to detect and block SQL injection payloads. 6. Conduct a comprehensive security review of the entire application to identify and remediate other potential injection points. 7. Educate administrators and users about the risks and signs of exploitation. 8. Plan for migration to a more secure and actively maintained community management platform if feasible.