CVE-2025-8532 is an authorization bypass vulnerability identified in the eBA Document and Workflow Management System developed by Bimser Solution Software Trade Inc. This vulnerability is classified under CWE-639 (Authorization Bypass Through User-Controlled Key) and CWE-285 (Improper Authorization). It affects versions from 6.7.164 before 6.7.166 of the software. The core issue arises from improper authorization controls that allow an attacker to perform forceful browsing by manipulating user-controlled keys. This means that an attacker with limited privileges (low-level privileges) can potentially access or perform actions beyond their authorized scope without requiring user interaction. The CVSS v3.1 base score is 6.4, indicating a medium severity level. The vector details (AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:N) show that the attack requires local access (AV:L), high attack complexity (AC:H), low privileges (PR:L), no user interaction (UI:N), and the scope is changed (S:C). The impact on confidentiality is low, but integrity is high, and availability is not affected. No known exploits are currently in the wild, and no patches have been linked yet. The vulnerability allows attackers to bypass authorization checks by exploiting the way the software handles user-controlled keys, enabling unauthorized access to sensitive documents or workflow functions within the system.

For European organizations using the eBA Document and Workflow Management System, this vulnerability poses a significant risk to the integrity of document management and workflow processes. Unauthorized access could lead to unauthorized modification of documents, workflow states, or business-critical data, potentially disrupting operations or causing data integrity issues. Given that the software is used for document and workflow management, exploitation could result in unauthorized changes to contracts, approvals, or compliance-related documents, which could have legal and regulatory consequences under frameworks like GDPR. The medium CVSS score reflects the need for caution, especially since the attack requires local access and high complexity, limiting remote exploitation but still posing risks from insider threats or compromised internal accounts. The scope change indicates that the vulnerability can affect resources beyond the initially authorized scope, increasing the potential damage. European organizations with sensitive workflows or regulated data are particularly at risk, as unauthorized modifications could lead to compliance violations, financial loss, or reputational damage.

1. Immediate mitigation should include restricting local access to the eBA Document and Workflow Management System to trusted users only, minimizing the risk of exploitation by low-privilege users. 2. Implement strict network segmentation and access controls to limit who can reach the affected software, reducing the attack surface. 3. Monitor and audit user activities within the system to detect unusual access patterns or forceful browsing attempts. 4. Apply principle of least privilege rigorously, ensuring users have only the minimum necessary permissions. 5. Since no patches are currently available, coordinate with Bimser Solution Software Trade Inc. for timely updates and apply patches as soon as they are released. 6. Consider deploying Web Application Firewalls (WAF) or similar controls that can detect and block forceful browsing or unauthorized URL manipulation attempts. 7. Conduct internal security reviews and penetration testing focusing on authorization controls within the eBA system to identify and remediate similar weaknesses. 8. Educate internal users about the risks of local privilege misuse and enforce strong authentication and session management policies.