CVE-2025-67082 identifies a critical SQL injection vulnerability in the InvoicePlane invoicing application, specifically affecting versions through 1.6.3. The vulnerability exists in the handling of 'maxQuantity' and 'minQuantity' parameters used during report generation. These parameters are not properly sanitized, particularly failing to escape or handle single quotes, which enables an authenticated attacker to inject malicious SQL code. The injection is error-based, meaning attackers can leverage database error messages to infer and extract arbitrary data from the backend database. This type of vulnerability compromises the confidentiality and integrity of the stored data, potentially exposing sensitive financial and client information. Exploitation requires the attacker to be authenticated, which limits the attack surface to users with some level of access but does not require administrative privileges. No public exploits have been reported yet, and no official patch links are provided, indicating that organizations must monitor for vendor updates or implement workarounds. The lack of a CVSS score necessitates an independent severity assessment based on impact and exploitability factors. The vulnerability arises from insufficient input validation and lack of parameterized queries in the affected code paths. This flaw could be leveraged in targeted attacks to extract sensitive business data or escalate privileges if combined with other vulnerabilities.

For European organizations, the impact of CVE-2025-67082 can be significant, especially for SMEs and service providers relying on InvoicePlane for invoicing and reporting. Successful exploitation can lead to unauthorized disclosure of sensitive financial data, client information, and internal business metrics, undermining confidentiality and potentially violating data protection regulations such as GDPR. The integrity of financial reports can also be compromised, affecting business decisions and trustworthiness. While availability is less directly impacted, the breach of data confidentiality can lead to reputational damage, regulatory fines, and operational disruptions. Organizations with multi-tenant deployments or shared hosting environments face increased risk of lateral movement or data leakage across clients. The requirement for authentication reduces the risk from external anonymous attackers but elevates the threat from insider attackers or compromised user accounts. Given the widespread use of InvoicePlane in European SMEs, the vulnerability poses a moderate to high risk to business continuity and compliance.

To mitigate CVE-2025-67082, organizations should immediately review and restrict access to the reporting features that accept 'maxQuantity' and 'minQuantity' parameters, limiting them to trusted users only. Implement strict input validation and sanitization on these parameters, ensuring that single quotes and other special characters are properly escaped or rejected. Where possible, update the InvoicePlane application to a patched version once available from the vendor. In the interim, consider applying web application firewall (WAF) rules to detect and block SQL injection patterns targeting these parameters. Employ parameterized queries or prepared statements in the application code to prevent injection attacks. Conduct regular audits of user accounts and monitor logs for suspicious activity related to report generation. Educate users on the risks of credential compromise and enforce strong authentication mechanisms, such as multi-factor authentication (MFA), to reduce the likelihood of attacker access. Finally, maintain regular backups of the database to enable recovery in case of data integrity issues.