CVE-2025-59686 is a vulnerability identified in Kazaar version 1.25.12 involving improper access control on the API endpoint /api/v1/org-id/orders/order-id/documents. Specifically, the API allows calls with a modified order-id parameter without proper authorization checks, enabling an attacker to access documents associated with orders they do not own. This is classified under CWE-285 (Improper Authorization). The vulnerability is remotely exploitable without requiring authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N). The impact affects confidentiality and integrity to a limited extent, as unauthorized users can view or potentially manipulate order documents, but availability remains unaffected. No patches or fixes have been released at the time of publication, and no active exploitation has been observed. The vulnerability's medium severity score (6.5) reflects the balance between ease of exploitation and limited impact scope. This flaw could be leveraged for information disclosure or tampering with order-related documents, potentially affecting business operations and trust in the affected systems.

For European organizations, this vulnerability could lead to unauthorized disclosure of sensitive order documents, which may contain confidential business, customer, or transactional data. Integrity impacts could include unauthorized modification of order documents, potentially disrupting order processing or causing financial discrepancies. While availability is not impacted, the breach of confidentiality and integrity could result in reputational damage, regulatory compliance issues (especially under GDPR if personal data is involved), and financial losses. Organizations in sectors relying heavily on Kazaar for order management, such as manufacturing, logistics, or retail, may face operational risks. The lack of authentication requirements makes this vulnerability particularly concerning for externally facing APIs, increasing the attack surface. Although no known exploits exist yet, the vulnerability's presence in a critical business function warrants proactive mitigation to prevent future exploitation.

European organizations should immediately audit their use of Kazaar, specifically version 1.25.12, and restrict access to the vulnerable API endpoint through network segmentation and firewall rules to limit exposure. Implement strict API gateway policies enforcing authorization checks on order-id parameters to ensure users can only access documents tied to their own orders. Employ Web Application Firewalls (WAFs) with custom rules to detect and block anomalous API calls with manipulated order-ids. Monitor API logs for unusual access patterns or repeated failed authorization attempts. If possible, disable or restrict the /api/v1/org-id/orders/order-id/documents endpoint until a vendor patch is released. Engage with the vendor or community for updates and patches, and plan for timely application once available. Additionally, conduct regular security assessments and penetration tests focusing on API authorization controls. Educate development teams on secure API design principles to prevent similar authorization flaws in future releases.