CVE-2025-12129 is an information exposure vulnerability affecting all versions up to and including 1.1.27 of the CubeWP – All-in-One Dynamic Content Framework plugin for WordPress. The vulnerability exists because the REST API endpoints /cubewp-posts/v1/query-new and /cubewp-posts/v1/query do not enforce adequate access restrictions on which posts can be queried. This allows unauthenticated attackers to retrieve data from posts that are password protected, private, or in draft status, which should normally be inaccessible without proper authorization. The root cause is insufficient validation of user permissions before returning post content via these API endpoints. Exploitation requires no authentication or user interaction and can be performed remotely over the network. The vulnerability impacts confidentiality by exposing sensitive content but does not affect data integrity or system availability. The CVSS v3.1 base score is 5.3, indicating a medium severity level due to the lack of authentication requirement but limited scope of impact. No patches or fixes are currently linked, and no known exploits have been reported in the wild as of the publication date. The vulnerability was assigned by Wordfence and publicly disclosed in January 2026. Organizations using CubeWP in their WordPress installations should assess their exposure and implement mitigations to prevent unauthorized data disclosure.

The primary impact of CVE-2025-12129 is the unauthorized disclosure of sensitive content stored in WordPress sites using the CubeWP Framework plugin. For European organizations, this could lead to leakage of confidential business information, internal communications, or other protected data contained in private or draft posts. Such exposure could damage organizational reputation, violate data protection regulations like GDPR, and potentially aid attackers in further reconnaissance or social engineering attacks. Since the vulnerability requires no authentication and can be exploited remotely, it increases the risk of widespread data leakage if CubeWP is widely deployed. However, the impact is limited to confidentiality; there is no direct threat to data integrity or service availability. Organizations hosting sensitive or regulated content on WordPress sites with CubeWP should consider this a significant risk vector. The absence of known exploits reduces immediate threat but does not eliminate the risk of future attacks. European sectors with high regulatory scrutiny, such as finance, healthcare, and government, are particularly vulnerable to the consequences of sensitive data exposure.

To mitigate CVE-2025-12129, organizations should first verify if they are running affected versions of the CubeWP Framework plugin (up to 1.1.27). Since no official patches are currently linked, immediate mitigation steps include disabling or restricting access to the vulnerable REST API endpoints (/cubewp-posts/v1/query-new and /cubewp-posts/v1/query) via web application firewalls or server configuration to block unauthenticated requests. Implement strict access control policies that enforce authentication and authorization checks before allowing access to post content through APIs. Monitoring and logging API requests for unusual or unauthorized access attempts can help detect exploitation attempts early. If possible, update to a patched version once available from the vendor. Additionally, review WordPress site permissions and consider limiting the use of plugins that expose sensitive content via APIs. Employing network segmentation and limiting public exposure of WordPress administrative interfaces can further reduce risk. Regular security audits and vulnerability scanning focused on WordPress plugins are recommended to identify and remediate similar issues proactively.