CVE-2025-55708 is a high-severity SQL Injection vulnerability (CWE-89) found in the ExpressTech Systems product 'Quiz And Survey Master' affecting versions up to 10.2.4. SQL Injection vulnerabilities occur when user-supplied input is improperly sanitized or neutralized before being incorporated into SQL queries, allowing attackers to manipulate the database queries executed by the application. In this case, the vulnerability allows an attacker with at least low privileges (PR:L) and no user interaction (UI:N) to remotely exploit the flaw over the network (AV:N). The vulnerability impacts confidentiality heavily (C:H) by potentially exposing sensitive data stored in the backend database, while integrity is not directly impacted (I:N), and availability impact is low (A:L). The scope is changed (S:C), meaning the vulnerability affects resources beyond the initially vulnerable component, potentially allowing access to broader system data. Although no known exploits are currently reported in the wild, the CVSS score of 8.5 indicates a significant risk. The vulnerability likely arises from insufficient input validation or parameterized query usage in the Quiz And Survey Master plugin, which is commonly used in web environments for creating quizzes and surveys. Attackers exploiting this flaw could extract sensitive information such as user credentials, survey results, or administrative data, which could lead to further attacks or data breaches.

For European organizations using the Quiz And Survey Master plugin, this vulnerability poses a substantial risk to the confidentiality of their data. Many educational institutions, market research firms, and enterprises in Europe rely on such survey tools to collect sensitive user data. Exploitation could lead to unauthorized data disclosure, violating GDPR and other data protection regulations, resulting in legal penalties and reputational damage. The ability to remotely exploit the vulnerability without user interaction increases the risk of automated attacks or targeted intrusions. Additionally, the scope change suggests that attackers might leverage this vulnerability to pivot to other parts of the network or database, potentially escalating the impact. Given the widespread use of WordPress and related plugins across Europe, organizations with insufficient patch management or security controls are particularly vulnerable. The lack of known exploits in the wild currently provides a window for proactive mitigation before widespread exploitation occurs.

Organizations should immediately verify if they are running affected versions of the Quiz And Survey Master plugin (up to 10.2.4) and prioritize upgrading to a patched version once available. In the absence of an official patch, temporary mitigations include implementing Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection patterns targeting the plugin's endpoints. Conduct thorough input validation and sanitization on all user inputs related to quizzes and surveys. Restrict database user privileges to the minimum necessary to limit the impact of a successful injection. Monitor logs for unusual database queries or access patterns indicative of exploitation attempts. Additionally, organizations should perform security audits and penetration testing focused on this plugin to identify any exploitation attempts. Network segmentation can also help contain potential lateral movement if the vulnerability is exploited. Finally, ensure compliance with GDPR by documenting the vulnerability management process and any incidents related to this issue.