CVE-2025-6348 is a medium-severity SQL Injection vulnerability affecting the Smart Slider 3 plugin for WordPress, versions up to and including 3.5.1.28. The vulnerability arises from improper neutralization of special elements in the 'sliderid' parameter, which is used in SQL queries without sufficient escaping or parameterization. This flaw allows authenticated users with Administrator-level privileges or higher to perform time-based SQL Injection attacks by appending additional SQL commands to existing queries. Exploiting this vulnerability can enable attackers to extract sensitive information from the underlying database, compromising confidentiality. The attack vector requires network access (remote) but demands high privileges (administrator) and no user interaction. The vulnerability does not impact data integrity or availability directly but poses a significant risk to data confidentiality. No known public exploits have been reported yet, and no patches have been linked at the time of publication. The CVSS 3.1 base score is 4.9, reflecting medium severity, with the vector indicating network attack vector, low attack complexity, high privileges required, no user interaction, unchanged scope, high confidentiality impact, and no integrity or availability impact.

For European organizations, this vulnerability poses a risk primarily to those using WordPress websites with the Smart Slider 3 plugin installed and active. Given that WordPress is widely used across Europe for corporate, governmental, and e-commerce websites, the potential for data exposure is significant where administrative accounts are compromised or misused. The vulnerability allows attackers with admin access to extract sensitive data from databases, which may include personal data protected under GDPR, intellectual property, or business-critical information. This could lead to regulatory penalties, reputational damage, and loss of customer trust. Although exploitation requires administrator privileges, insider threats or compromised admin credentials could facilitate attacks. The lack of known exploits in the wild currently reduces immediate risk, but the medium severity and ease of exploitation with high privileges necessitate prompt attention. Organizations relying on Smart Slider 3 for website content management should consider this vulnerability a priority for mitigation to prevent data breaches and compliance violations.

1. Immediate mitigation involves restricting administrator access to trusted personnel only and enforcing strong authentication mechanisms such as multi-factor authentication (MFA) to reduce the risk of credential compromise. 2. Monitor and audit administrator activities on WordPress sites to detect unusual behavior that might indicate exploitation attempts. 3. Disable or remove the Smart Slider 3 plugin if it is not essential to reduce the attack surface. 4. Since no official patch is currently linked, organizations should monitor vendor communications closely for updates or patches addressing this vulnerability and apply them promptly once available. 5. Implement Web Application Firewalls (WAFs) with custom rules to detect and block suspicious SQL injection patterns targeting the 'sliderid' parameter. 6. Conduct regular security assessments and penetration tests focusing on WordPress plugins to identify and remediate similar vulnerabilities proactively. 7. Backup website data regularly and securely to enable recovery in case of compromise. 8. Educate administrators about the risks of SQL injection and the importance of secure plugin management.