CVE-2025-67919 identifies a critical authorization bypass vulnerability in the Woffice Core product developed by WofficeIO, affecting versions up to and including 5.4.30. The vulnerability stems from improperly configured access control security levels that rely on user-controlled keys, which attackers can manipulate to circumvent authorization mechanisms. This means that an attacker, potentially with limited privileges or even unauthenticated, could exploit this flaw to gain unauthorized access to restricted areas or functionalities within the Woffice Core platform. Woffice Core is typically used as a collaboration and intranet solution, often deployed in organizational environments to manage internal communications, documents, and workflows. The lack of a CVSS score and absence of known exploits in the wild suggest that the vulnerability is newly disclosed and may not yet be actively exploited. However, the technical nature of the flaw—authorization bypass through user-controlled keys—indicates a fundamental security design issue that could be leveraged to escalate privileges or access sensitive data. The vulnerability was reserved in December 2025 and published in January 2026, indicating recent discovery. No official patches or remediation links are currently provided, emphasizing the need for organizations to proactively assess their Woffice Core configurations and monitor for updates. The absence of CWE identifiers limits detailed classification, but the core issue relates to access control misconfiguration. Given the product's use in enterprise and public sector environments, exploitation could lead to data breaches, unauthorized administrative actions, or disruption of internal services.

For European organizations, the impact of CVE-2025-67919 could be significant, especially for those relying on Woffice Core for internal collaboration and document management. Unauthorized access could lead to exposure of sensitive corporate or governmental information, manipulation of internal workflows, or unauthorized administrative changes. This could result in data confidentiality breaches, integrity violations, and potential availability disruptions if attackers modify or delete critical data. The vulnerability's nature allows bypassing authorization controls without requiring user interaction or authentication, increasing the risk of widespread exploitation if attackers gain network access. Sectors such as government agencies, educational institutions, and large enterprises using Woffice Core are particularly at risk. The impact extends to compliance risks under GDPR if personal data is exposed. Additionally, the trustworthiness of internal communication platforms could be undermined, affecting operational security and employee confidence.

Organizations should immediately audit their Woffice Core deployments to identify any use of user-controlled keys in access control mechanisms. Until official patches are released, administrators should implement strict access control policies, minimizing privileges and restricting key inputs to trusted sources only. Network segmentation and monitoring for unusual access patterns to Woffice Core services can help detect exploitation attempts. Employing Web Application Firewalls (WAFs) with custom rules to block suspicious requests targeting authorization parameters may provide temporary protection. Organizations should subscribe to vendor advisories and Patchstack updates to apply security patches promptly once available. Additionally, conducting penetration testing focused on authorization controls in Woffice Core can help identify and remediate configuration weaknesses. Training IT staff on secure configuration practices and reviewing logs for anomalous activities related to access control bypass attempts are also recommended.