CVE-2026-25020 identifies a Missing Authorization vulnerability in the WP Sync for Notion plugin developed by WP connect, affecting all versions up to and including 1.7.0. The vulnerability arises from incorrectly configured access control mechanisms within the plugin, which fail to properly verify whether a user has the necessary permissions to perform certain actions. This can allow an attacker, potentially even unauthenticated, to exploit the plugin's synchronization features between WordPress and Notion, leading to unauthorized data access or modification. The plugin facilitates content synchronization, so exploitation could result in leakage or tampering of sensitive content managed across these platforms. Although no exploits are currently known in the wild, the lack of authorization checks represents a significant security gap. The absence of a CVSS score suggests that the vulnerability is newly disclosed and pending full assessment. The vulnerability impacts the confidentiality and integrity of data, and depending on the attack vector, could also affect availability if synchronization processes are disrupted. The plugin is widely used by organizations leveraging WordPress and Notion for content management and collaboration, making this a relevant threat vector.

For European organizations, the impact centers on unauthorized access to or manipulation of synchronized content between WordPress sites and Notion workspaces. This can lead to data breaches involving sensitive business information, intellectual property, or personal data protected under GDPR. Integrity of content may be compromised, undermining trust in published or shared information. Availability impacts could arise if attackers disrupt synchronization workflows, affecting business continuity. Organizations relying heavily on WordPress and Notion integrations for content management, project collaboration, or documentation are particularly vulnerable. The breach of confidentiality and integrity could result in regulatory penalties, reputational damage, and operational disruptions. Since the vulnerability does not require known exploits in the wild yet, proactive mitigation is critical to prevent exploitation. The risk is amplified in sectors with stringent data protection requirements such as finance, healthcare, and government within Europe.

1. Monitor WP connect announcements and apply security patches promptly once released for WP Sync for Notion. 2. Until patches are available, restrict plugin usage to trusted users and roles with minimal necessary permissions. 3. Review and harden WordPress user roles and capabilities to limit access to plugin functions. 4. Implement web application firewalls (WAF) with custom rules to detect and block suspicious requests targeting the plugin endpoints. 5. Conduct regular audits of synchronization logs and access patterns to detect anomalies. 6. Consider disabling the plugin if synchronization with Notion is not critical or can be temporarily suspended. 7. Educate administrators on the risks of missing authorization vulnerabilities and enforce strict access control policies. 8. Employ network segmentation and monitoring to limit lateral movement if exploitation occurs. 9. Use security plugins that can detect unauthorized changes or access attempts within WordPress environments. 10. Prepare incident response plans specific to content synchronization breaches.