CVE-2025-62738 is a security vulnerability identified in the mmattax Formstack Online Forms product, specifically affecting versions up to and including 2.0.2. The vulnerability is classified as a Missing Authorization issue, which means that the application fails to properly enforce access control policies on certain resources or actions. This misconfiguration allows unauthorized users to bypass intended security restrictions, potentially accessing or manipulating form data that should be protected. The root cause is incorrectly configured access control security levels within the Formstack Online Forms platform. Although no exploits have been reported in the wild, the vulnerability poses a significant risk because it can lead to unauthorized disclosure or modification of sensitive information collected via online forms. The lack of a CVSS score indicates that the vulnerability has not yet been fully assessed in terms of impact and exploitability. However, the nature of missing authorization typically implies that attackers do not need to authenticate or require minimal privileges to exploit the flaw. This increases the attack surface and potential impact. The vulnerability affects organizations that rely on Formstack Online Forms for data collection, especially those handling personal, financial, or regulated data. The absence of vendor patches or mitigation details in the provided information suggests that organizations must proactively audit and adjust access control settings to prevent exploitation. Monitoring for unusual access patterns and restricting form access to trusted users are critical interim measures.

For European organizations, the impact of CVE-2025-62738 can be substantial, particularly for those in sectors such as finance, healthcare, legal, and government where Formstack Online Forms may be used to collect sensitive or regulated data. Unauthorized access to form data can lead to breaches of confidentiality, exposing personal data protected under GDPR and other privacy regulations, potentially resulting in regulatory fines and reputational damage. Integrity of data may also be compromised if attackers modify form submissions, leading to incorrect business decisions or fraudulent activities. Availability impact is likely limited but cannot be ruled out if attackers exploit the vulnerability to disrupt form services. The risk is heightened in organizations that have not implemented strict access controls or rely heavily on Formstack for critical workflows. Additionally, the lack of authentication requirements for exploitation increases the likelihood of opportunistic attacks. European organizations must consider the legal and compliance ramifications of data exposure and the operational risks associated with unauthorized data manipulation.

To mitigate CVE-2025-62738, European organizations should take the following specific actions: 1) Immediately audit all Formstack Online Forms configurations to verify that access control settings are correctly applied and restrict form access to authorized users only. 2) Implement role-based access controls (RBAC) or attribute-based access controls (ABAC) where possible to enforce least privilege principles. 3) Monitor access logs and form submission records for unusual or unauthorized activity that could indicate exploitation attempts. 4) Engage with the vendor mmattax to obtain patches or updates addressing this vulnerability as soon as they become available. 5) If vendor patches are not yet available, consider temporarily disabling vulnerable forms or restricting their exposure to trusted networks or VPNs. 6) Educate internal teams about the risks of missing authorization vulnerabilities and the importance of secure configuration management. 7) Integrate Formstack Online Forms into broader security monitoring and incident response workflows to detect and respond to potential misuse quickly. 8) Review and update incident response plans to include scenarios involving unauthorized access to form data. These steps go beyond generic advice by focusing on configuration auditing, monitoring, vendor engagement, and operational controls tailored to the specific nature of this vulnerability.