CVE-2025-54726 is a critical SQL Injection vulnerability (CWE-89) identified in the JS Archive List product developed by Miguel Useche. The vulnerability arises due to improper neutralization of special elements used in SQL commands, allowing an attacker to inject malicious SQL code. The CVSS 3.1 base score of 9.3 indicates a critical severity with network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction needed (UI:N), and a scope change (S:C). The impact on confidentiality is high, while integrity is not affected, and availability impact is low. The vulnerability allows remote attackers to execute arbitrary SQL queries on the backend database without authentication or user interaction, potentially leading to unauthorized disclosure of sensitive data. Although no known exploits are currently reported in the wild and no specific affected versions are listed, the vulnerability's nature suggests that any deployment of JS Archive List without proper input sanitization is at risk. The lack of available patches or mitigations at the time of publication further elevates the urgency for organizations to assess their exposure and implement protective controls. Given the scope change, exploitation could affect multiple components or systems relying on the vulnerable product, amplifying the potential damage.

For European organizations, this vulnerability poses a significant risk, especially for those using JS Archive List in their web applications or internal tools that manage archives or document listings. The high confidentiality impact means sensitive data stored in backend databases could be exposed, including personal data protected under GDPR, intellectual property, or business-critical information. A successful exploit could lead to data breaches, regulatory fines, reputational damage, and loss of customer trust. The low availability impact suggests service disruption is less likely but cannot be ruled out if attackers leverage SQL injection for denial-of-service conditions. Since no authentication is required, attackers can remotely exploit this vulnerability without prior access, increasing the threat surface. European organizations with public-facing applications using this product are particularly vulnerable. Additionally, the scope change indicates that the vulnerability may affect interconnected systems, potentially leading to broader compromise within enterprise environments.

Given the absence of official patches, European organizations should immediately conduct a thorough inventory to identify any use of JS Archive List. If found, organizations should consider the following specific mitigations: 1) Implement Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection payloads targeting the vulnerable endpoints. 2) Employ strict input validation and sanitization at the application layer, ensuring that all user-supplied input is properly escaped or parameterized before database queries. 3) Restrict database permissions for the application to the minimum necessary, preventing unauthorized data access or modification. 4) Monitor database logs and application logs for unusual query patterns indicative of SQL injection attempts. 5) If feasible, isolate the vulnerable application components in segmented network zones to limit lateral movement. 6) Engage with the vendor or community to obtain or request patches or updates addressing the vulnerability. 7) Consider temporary disabling or replacing the vulnerable functionality until a secure version is available. 8) Educate development and security teams about secure coding practices to prevent similar vulnerabilities in future deployments.