CVE-2025-67004 is an information disclosure vulnerability identified in CouchCMS version 2.4. The flaw allows an authenticated administrator to exploit directory traversal by navigating back through directories beyond the intended scope, thereby reading arbitrary files on the underlying server filesystem. This can result in exposure of sensitive information such as source code, configuration files, or other confidential data stored on the server. The vulnerability requires admin-level authentication, which limits the attack surface to trusted users or compromised admin accounts. No CVSS score has been assigned yet, and no patches or known exploits are publicly available as of the publication date. The vulnerability arises from insufficient validation or sanitization of file path inputs when accessing files, enabling traversal sequences like '../' to escape the intended directory boundaries. If weaponized, attackers could leverage disclosed information to facilitate further attacks, including privilege escalation or targeted exploitation of disclosed credentials or configuration details. The lack of a patch means organizations must rely on compensating controls until an official fix is released. This vulnerability primarily impacts web servers running CouchCMS 2.4, a content management system used for website management.

The primary impact is confidentiality loss due to unauthorized disclosure of sensitive files, including source code and configuration data. Exposure of source code can reveal application logic, security mechanisms, and potential additional vulnerabilities. Disclosure of configuration files may leak database credentials, API keys, or other secrets, increasing the risk of further compromise. Although the vulnerability requires admin authentication, compromised or malicious insiders could exploit it to escalate attacks. For European organizations, this could lead to data breaches, intellectual property theft, and compliance violations under regulations like GDPR if personal data is exposed. The absence of known exploits reduces immediate risk, but the potential for weaponization remains significant. The vulnerability does not directly affect availability or integrity but can indirectly facilitate attacks that do. Organizations relying on CouchCMS for critical web infrastructure or handling sensitive data are particularly at risk.

1. Restrict admin access strictly to trusted personnel and enforce strong authentication mechanisms, including multi-factor authentication (MFA). 2. Monitor web server and application logs for unusual file access patterns indicative of directory traversal attempts. 3. Implement file system access controls to limit the files accessible by the web server process, minimizing sensitive data exposure. 4. Conduct regular audits of admin accounts and promptly revoke access for inactive or unnecessary users. 5. Use web application firewalls (WAFs) configured to detect and block directory traversal payloads. 6. Prepare for patch deployment by tracking vendor advisories and testing updates in staging environments. 7. Consider isolating CouchCMS instances in segmented network zones to reduce lateral movement risk. 8. Educate administrators about the risks of this vulnerability and the importance of secure credential management. 9. If possible, temporarily disable or limit file browsing features within CouchCMS until a patch is available.