CVE-2025-65742 is a vulnerability classified under CWE-862 (Broken Function Level Authorization) affecting Newgen OmniDocs version 11.0. The flaw allows unauthenticated attackers to bypass function-level access controls via specially crafted API requests. This bypass enables attackers to access sensitive information and perform a full account takeover without any prior authentication or user interaction. The vulnerability is remotely exploitable over the network with low attack complexity, as indicated by the CVSS 3.1 base score of 8.2 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N). The primary impact is on confidentiality, with high data exposure risk, and a partial impact on integrity due to account compromise, though availability is not affected. The vulnerability arises from insufficient authorization checks at the function level within the API endpoints of OmniDocs, allowing attackers to invoke privileged functions intended only for authenticated users. No patches or fixes have been published at the time of disclosure, and no known exploits have been observed in the wild. Given the criticality of document management systems in enterprise workflows, exploitation could lead to significant data breaches and operational disruptions.

For European organizations, exploitation of this vulnerability could lead to unauthorized disclosure of sensitive corporate and personal data managed within Newgen OmniDocs, including confidential documents and workflow information. Full account takeover could allow attackers to impersonate legitimate users, escalate privileges, and manipulate or exfiltrate data, potentially violating GDPR and other data protection regulations. The breach of confidentiality and integrity could damage organizational reputation, result in regulatory fines, and disrupt business processes. Sectors such as finance, government, healthcare, and large enterprises that rely heavily on document management systems are particularly at risk. The lack of authentication requirement and ease of exploitation increase the likelihood of attacks, especially in environments with internet-facing OmniDocs APIs or insufficient network segmentation. The absence of a patch means organizations must rely on immediate mitigations to prevent exploitation.

Until an official patch is released, European organizations should implement strict network-level controls to restrict access to OmniDocs API endpoints, including IP whitelisting and VPN-only access. Conduct a thorough audit of API authorization logic and implement additional access control checks where possible. Enable detailed logging and monitoring of API requests to detect anomalous or unauthorized access attempts. Employ Web Application Firewalls (WAFs) with custom rules to block suspicious API calls that attempt to access privileged functions without authentication. Review and enforce the principle of least privilege for all user accounts and service integrations within OmniDocs. Engage with Newgen support for any available hotfixes or workarounds. Additionally, prepare incident response plans specific to potential account takeover scenarios and ensure rapid response capabilities. Regularly update and train security teams on emerging threats related to API security and broken authorization vulnerabilities.