CVE-2025-68587 is a missing authorization vulnerability identified in the Bob Watu Quiz plugin, a WordPress plugin used for creating quizzes and assessments. The vulnerability arises from incorrectly configured access control security levels, allowing attackers with low privileges (PR:L) to bypass authorization checks and access or modify data they should not have permission to. The vulnerability affects all versions up to and including 3.4.5. The CVSS 3.1 base score is 8.1, reflecting a high severity due to the network attack vector (AV:N), low attack complexity (AC:L), and no user interaction required (UI:N). The scope is unchanged (S:U), but the impact on confidentiality (C:H) and integrity (I:H) is high, while availability is unaffected (A:N). This means an attacker can remotely exploit the vulnerability to access sensitive quiz data or alter quiz content without needing to trick a user or have elevated privileges beyond low-level access. No patches or exploits are currently publicly available, but the vulnerability is published and should be considered a significant risk. The flaw likely stems from missing or improperly enforced authorization checks in the plugin's backend functions, which could allow unauthorized API calls or administrative actions. Organizations using Watu Quiz for educational or training purposes may face data leakage or manipulation risks, undermining trust and compliance with data protection regulations.

For European organizations, particularly educational institutions, e-learning providers, and businesses using Watu Quiz for training, this vulnerability poses a serious threat. Unauthorized access could lead to exposure of personal data of students or employees, violating GDPR requirements and resulting in regulatory penalties. Integrity compromise could allow attackers to alter quiz results or content, impacting academic or certification outcomes and damaging organizational reputation. Since the vulnerability can be exploited remotely without user interaction, attackers can automate attacks at scale. The lack of availability impact means systems remain operational but compromised. The risk is heightened in environments where Watu Quiz is integrated with other sensitive systems or stores personally identifiable information. The potential for data breaches and manipulation could disrupt educational processes and erode trust in digital learning platforms across Europe.

Organizations should immediately inventory their WordPress installations to identify the presence and version of the Watu Quiz plugin. Until a patch is released, restrict access to the plugin’s administrative interfaces and APIs by IP whitelisting or VPN access. Implement strict role-based access controls to limit user privileges to the minimum necessary. Monitor logs for unusual access patterns or unauthorized API calls related to Watu Quiz. Regularly update WordPress and all plugins to the latest versions once patches addressing CVE-2025-68587 become available. Consider deploying web application firewalls (WAFs) with custom rules to detect and block exploitation attempts targeting Watu Quiz endpoints. Educate administrators about the risks of missing authorization vulnerabilities and the importance of promptly applying security updates. Conduct security audits focusing on access control configurations in WordPress plugins. Finally, prepare incident response plans to quickly address any suspected exploitation.