CVE-2025-63054 identifies a missing authorization vulnerability in the Quiz And Survey Master plugin developed by ExpressTech Systems, specifically affecting versions up to and including 10.3.1. The vulnerability arises from incorrectly configured access control security levels within the plugin, which fails to properly enforce authorization checks on certain operations. This misconfiguration allows an attacker to bypass intended access restrictions, potentially performing unauthorized actions such as viewing, modifying, or deleting quiz and survey data without proper privileges. Although no exploits have been reported in the wild yet, the nature of the vulnerability suggests that exploitation could be straightforward, especially if the attacker has some level of access to the WordPress environment. The plugin is widely used for creating quizzes and surveys on WordPress sites, which are common in educational, corporate, and marketing contexts. The absence of a CVSS score indicates that the vulnerability is newly disclosed and not yet fully assessed, but the missing authorization flaw typically represents a significant security risk. The vulnerability impacts the confidentiality and integrity of data managed by the plugin and could lead to unauthorized data exposure or manipulation. The lack of authentication requirements for exploitation is not explicitly stated, but missing authorization often implies that an attacker with minimal privileges or even unauthenticated users might exploit the flaw. The vulnerability was reserved in late October 2025 and published in December 2025, indicating recent discovery and disclosure. No patches or fixes are currently linked, so organizations must proactively assess their exposure and implement compensating controls.

For European organizations, the impact of CVE-2025-63054 can be significant, particularly for those relying on the Quiz And Survey Master plugin for educational assessments, customer feedback, or internal surveys. Unauthorized access could lead to exposure of sensitive survey responses, manipulation of quiz results, or disruption of survey operations, undermining data integrity and trust. This could affect compliance with data protection regulations such as GDPR, especially if personal data is involved. The vulnerability could also be leveraged as a foothold for further attacks within the WordPress environment, potentially escalating privileges or compromising the broader system. Organizations in sectors like education, market research, and human resources are particularly vulnerable due to their reliance on accurate and confidential survey data. The absence of known exploits provides a window for mitigation but also means attackers may develop exploits soon after disclosure. The impact on availability is likely limited but cannot be ruled out if the vulnerability is used to disrupt survey functionality. Overall, the threat poses a high risk to confidentiality and integrity, with moderate risk to availability.

European organizations should immediately audit their WordPress installations to identify the presence of the Quiz And Survey Master plugin and determine the version in use. Until an official patch is released, administrators should restrict access to the plugin’s management interfaces to trusted users only and enforce strict role-based access controls to minimize exposure. Review and harden WordPress user roles and permissions, ensuring that only authorized personnel can create, modify, or delete quizzes and surveys. Implement monitoring and alerting for unusual activities related to the plugin, such as unexpected changes to quizzes or surveys. Consider temporarily disabling the plugin if it is not critical to operations or if mitigating controls cannot be assured. Stay informed about vendor updates and apply patches promptly once available. Additionally, conduct regular backups of survey data to enable recovery in case of compromise. Employ web application firewalls (WAFs) with rules targeting unauthorized access attempts to the plugin endpoints. Finally, educate administrators about the risks of misconfigured access controls and the importance of least privilege principles.