CVE-2025-66096 is a missing authorization vulnerability found in the Table Block by Tableberg plugin, developed by Imtiaz Rayhan, affecting all versions up to and including 0.6.9. The vulnerability arises from an incorrectly configured access control mechanism that fails to properly verify whether a user has the necessary permissions to perform certain actions within the plugin. This missing authorization allows an attacker with low privileges (PR:L) to remotely exploit the vulnerability over the network (AV:N) without requiring any user interaction (UI:N). The vulnerability impacts confidentiality to a limited extent (C:L), but does not affect integrity (I:N) or availability (A:N). The CVSS 3.1 base score is 4.3, reflecting a medium severity level. The plugin is typically used in content management systems to display tabular data blocks, and the missing authorization could allow unauthorized access to sensitive data or configuration elements within the plugin. Although no known exploits are currently in the wild and no patches have been released, the vulnerability poses a risk to environments where the plugin is deployed and accessible to authenticated users with limited privileges. The issue was published on November 21, 2025, and is tracked by Patchstack. Due to the nature of the vulnerability, attackers would need at least low-level authenticated access to exploit it, but no further user interaction is required.

For European organizations, the impact of CVE-2025-66096 depends largely on the extent to which the Table Block by Tableberg plugin is used within their web infrastructure. Organizations using this plugin in their content management systems may face unauthorized disclosure of sensitive tabular data or configuration information due to the missing authorization checks. While the vulnerability does not allow modification or deletion of data, the confidentiality breach could expose business-sensitive or personal data, potentially leading to compliance issues under GDPR. The medium severity score indicates a moderate risk, but the requirement for low privilege authentication limits the attack surface to insiders or compromised accounts. Organizations in sectors with high regulatory scrutiny, such as finance, healthcare, and government, could be more affected if the plugin is used in critical web applications. Additionally, the lack of a patch increases the risk window, necessitating proactive mitigation. The vulnerability could also be leveraged as a stepping stone for further attacks if attackers gain initial foothold via low-privilege accounts.

1. Immediately audit and restrict access to the Table Block by Tableberg plugin to only trusted and necessary users, minimizing the number of accounts with low-level privileges that can access the plugin. 2. Implement strict role-based access controls (RBAC) in the content management system to ensure that only authorized users can interact with the plugin’s features. 3. Monitor logs and user activity for unusual access patterns or attempts to access the plugin’s restricted functions. 4. If possible, temporarily disable or remove the Table Block by Tableberg plugin until an official patch or update is released by the vendor. 5. Keep the content management system and all plugins up to date, and subscribe to vendor or security mailing lists to receive timely notifications about patches. 6. Consider deploying web application firewalls (WAF) with custom rules to detect and block suspicious requests targeting the plugin’s endpoints. 7. Educate administrators and users about the risks of privilege escalation and the importance of strong authentication mechanisms to prevent account compromise. 8. Prepare an incident response plan in case exploitation attempts are detected, including containment and forensic analysis procedures.