CVE-2025-13084 is a vulnerability identified in the Opto 22 groov View Server, specifically version R1.0a. The issue lies in the users endpoint of the groov View API, which returns a list of all users along with associated metadata, including their API keys. Critically, this endpoint requires only an Editor role to access, which is a privilege level below Administrator. However, the API keys returned include those of all users, including Administrators, thereby exposing highly sensitive credentials. The vulnerability is classified under CWE-1230, which relates to improper exposure of sensitive information. The CVSS v3.1 score is 7.6, indicating a high severity with network attack vector (AV:N), low attack complexity (AC:L), requiring privileges (PR:L) but no user interaction (UI:N). The impact on confidentiality is high since API keys can be used to impersonate users or escalate privileges, while integrity and availability impacts are lower but present. Although no known exploits are reported in the wild, the vulnerability presents a significant risk in environments where Editor roles are assigned to multiple users or where network access is not tightly controlled. The vulnerability affects industrial control systems and automation environments where groov View Server is deployed, potentially allowing attackers to gain unauthorized access to critical operational technology systems.

For European organizations, particularly those in industrial automation, manufacturing, and critical infrastructure sectors using Opto 22 groov View Server, this vulnerability poses a significant risk. Exposure of API keys can lead to unauthorized access to control systems, enabling attackers to manipulate operational processes, disrupt services, or exfiltrate sensitive operational data. The confidentiality breach could facilitate further lateral movement within networks, potentially impacting integrity and availability of industrial processes. Given the reliance on automation in sectors such as energy, manufacturing, and transportation across Europe, exploitation could lead to operational downtime, safety hazards, and financial losses. The requirement for Editor-level privileges somewhat limits the attack surface but does not eliminate risk, especially if Editor roles are widely assigned or if credentials are compromised through other means. The lack of user interaction needed for exploitation increases the threat level, as attacks can be automated or executed remotely once access is obtained.

European organizations should immediately review and restrict the assignment of Editor roles within groov View Server to only trusted personnel. Implement strict network segmentation to limit access to the groov View API endpoints, ensuring that only authorized systems and users can reach the users endpoint. Monitor API access logs for unusual or unauthorized requests to the users endpoint, focusing on Editor role accounts. Employ multi-factor authentication (MFA) where possible to reduce the risk of credential compromise. Since no official patches are currently available, consider deploying compensating controls such as API gateway filtering or web application firewalls (WAF) to block or monitor access to the vulnerable endpoint. Engage with Opto 22 for timely patch releases and apply updates promptly once available. Conduct regular security audits and penetration tests focusing on role-based access controls and API security. Educate users with Editor privileges about the sensitivity of their access and enforce strong password policies to reduce the risk of credential theft.