CVE-2025-63054 is a vulnerability classified as missing authorization in the Quiz And Survey Master plugin developed by ExpressTech Systems, affecting versions up to and including 10.3.1. The core issue stems from incorrectly configured access control security levels, which allow unauthenticated remote attackers to bypass authorization checks and access restricted quiz or survey data. The vulnerability is exploitable over the network without requiring any privileges or user interaction, making it accessible to any attacker with network access to the affected system. The CVSS v3.1 base score is 5.3 (medium severity), reflecting a network attack vector with low complexity and no required privileges or user interaction, but limited impact confined to confidentiality loss without affecting integrity or availability. The vulnerability does not currently have known exploits in the wild, and no official patches have been published at the time of analysis. The missing authorization could allow attackers to view sensitive quiz or survey content, potentially exposing user responses or internal data collected through the plugin. This could lead to privacy violations or leakage of sensitive organizational information, especially in environments where quizzes or surveys collect confidential data. The lack of integrity or availability impact means the vulnerability does not allow data modification or service disruption. However, the exposure of confidential data can still have reputational and compliance consequences. The vulnerability affects a widely used WordPress plugin, which is popular in educational, corporate training, and survey contexts, increasing the potential attack surface. The technical details indicate the vulnerability was reserved in late October 2025 and published in December 2025, suggesting a recent discovery and disclosure timeline.

For European organizations, the primary impact of CVE-2025-63054 is the unauthorized disclosure of sensitive quiz and survey data, which may include personal information, assessment results, or proprietary content. This can lead to privacy breaches, non-compliance with GDPR and other data protection regulations, and potential reputational damage. Educational institutions, training providers, and enterprises using Quiz And Survey Master for internal or external assessments are particularly at risk. Although the vulnerability does not allow data modification or service disruption, the confidentiality loss could undermine trust in digital learning and survey platforms. The ease of exploitation without authentication increases the risk of opportunistic attacks. Organizations may also face legal and regulatory scrutiny if exposed data includes personal or sensitive information. The lack of known exploits in the wild currently limits immediate risk, but the vulnerability’s public disclosure means attackers could develop exploits in the near future. Therefore, European entities should prioritize assessment and remediation to avoid potential data leaks and compliance issues.

1. Monitor ExpressTech Systems’ official channels for patches addressing CVE-2025-63054 and apply updates promptly once available. 2. Until patches are released, restrict network access to the Quiz And Survey Master plugin endpoints by implementing firewall rules or web application firewall (WAF) policies to limit exposure to trusted IPs or internal networks. 3. Review and harden access control configurations within the plugin settings to ensure that sensitive quiz and survey data is not publicly accessible or exposed to unauthenticated users. 4. Conduct regular audits of user permissions and plugin configurations to detect and remediate any misconfigurations. 5. Enable detailed logging and monitoring of access to quiz and survey resources to identify suspicious or unauthorized access attempts. 6. Educate administrators and relevant staff about the vulnerability and the importance of timely patching and configuration management. 7. Consider temporary disabling or replacing the plugin if critical sensitive data is at risk and no immediate patch is available. 8. Implement network segmentation to isolate systems hosting the vulnerable plugin from critical infrastructure. These measures go beyond generic advice by focusing on access control hardening, network restrictions, and proactive monitoring tailored to this specific plugin vulnerability.