CVE-2025-54026 is a high-severity SQL Injection vulnerability affecting the GymBase Theme Classes developed by QuanticaLabs, specifically versions up to 1.4. The vulnerability arises from improper neutralization of special elements used in SQL commands (CWE-89), allowing an attacker with at least low privileges (PR:L) to inject malicious SQL code remotely (AV:N) without requiring user interaction (UI:N). The vulnerability impacts confidentiality significantly (C:H), while integrity remains unaffected (I:N), and availability is slightly impacted (A:L). The scope is changed (S:C), indicating that exploitation can affect resources beyond the initially vulnerable component. Exploiting this vulnerability could allow an attacker to extract sensitive data from the underlying database, such as user credentials or personal information, potentially leading to data breaches. The vulnerability exists in the theme classes of GymBase, a WordPress theme or plugin component, which is commonly used in fitness and gym-related websites. No known public exploits are currently reported, and no patches have been published yet. However, the high CVSS score of 8.5 reflects the critical nature of the vulnerability and the ease of exploitation given network access and low privileges.

For European organizations, especially those in the fitness, health, and wellness sectors using WordPress sites with the GymBase theme, this vulnerability poses a significant risk. Successful exploitation could lead to unauthorized disclosure of sensitive customer data, including personal and payment information, potentially violating GDPR and other data protection regulations. This could result in legal penalties, reputational damage, and financial losses. Additionally, the compromise of website databases could facilitate further attacks such as phishing, account takeover, or lateral movement within the organization's network. Given the widespread use of WordPress in Europe and the popularity of fitness-related websites, the impact could be broad, affecting small to medium enterprises and larger organizations alike. The vulnerability's ability to be exploited remotely without user interaction increases the risk of automated attacks and mass exploitation attempts.

Organizations should immediately audit their WordPress installations to identify the use of the GymBase theme version 1.4 or earlier. Until an official patch is released by QuanticaLabs, it is recommended to implement the following mitigations: 1) Apply Web Application Firewall (WAF) rules specifically targeting SQL Injection patterns to block malicious payloads targeting the vulnerable endpoints. 2) Restrict database user privileges associated with the WordPress installation to the minimum necessary, preventing unauthorized data access or modification. 3) Conduct code reviews or employ security scanning tools to detect and remediate unsafe SQL query constructions in the theme classes. 4) Monitor web server and database logs for unusual query patterns or access attempts indicative of exploitation attempts. 5) Consider temporarily disabling or replacing the GymBase theme with a secure alternative if immediate patching is not feasible. 6) Stay alert for official patches or updates from QuanticaLabs and apply them promptly once available. 7) Educate site administrators on the risks of SQL Injection and the importance of timely updates and security hygiene.