CVE-2024-11939 is a blind time-based SQL Injection vulnerability identified in the Cost Calculator Builder PRO plugin for WordPress, developed by StylemixThemes. This vulnerability exists in all versions up to and including 3.2.15 due to insufficient escaping and improper preparation of the 'data' parameter in SQL queries. Specifically, the plugin fails to neutralize special SQL elements in user-supplied input, allowing attackers to append arbitrary SQL commands to existing queries. The injection is blind and time-based, meaning attackers can infer database information by measuring response delays without direct data output. The vulnerability is exploitable remotely without authentication or user interaction, increasing its risk profile. The CVSS v3.1 base score is 7.5, reflecting high severity with network attack vector, low attack complexity, no privileges required, and no user interaction needed. The impact primarily affects confidentiality, enabling attackers to extract sensitive data such as user credentials, payment information, or other database contents. No known public exploits have been reported yet, but the vulnerability's characteristics make it a prime target for attackers once weaponized. The lack of official patches at the time of publication necessitates immediate attention from site administrators.

The primary impact of CVE-2024-11939 is the unauthorized disclosure of sensitive information stored in the WordPress site's database. Attackers exploiting this vulnerability can extract confidential data such as user details, payment records, or proprietary business information, leading to data breaches and potential regulatory penalties. Since the vulnerability requires no authentication and can be exploited remotely, it significantly increases the attack surface for affected sites. The integrity and availability of the system are not directly impacted; however, the loss of confidentiality can damage organizational reputation and customer trust. For e-commerce and service providers relying on the Cost Calculator Builder PRO plugin, this vulnerability could facilitate further attacks such as identity theft, fraud, or targeted phishing campaigns. Organizations worldwide using this plugin are at risk, especially those with high-value data or compliance obligations.

1. Immediate mitigation involves updating the Cost Calculator Builder PRO plugin to a version that patches this vulnerability once available from StylemixThemes. 2. Until a patch is released, implement Web Application Firewall (WAF) rules to detect and block suspicious SQL injection patterns targeting the 'data' parameter, focusing on time-based injection signatures. 3. Employ input validation and sanitization at the application level, restricting or encoding special SQL characters in user inputs. 4. Limit database user privileges associated with the WordPress application to the minimum necessary, preventing unauthorized data access or modification. 5. Monitor web server and database logs for unusual query patterns or delays indicative of blind SQL injection attempts. 6. Consider temporarily disabling or replacing the vulnerable plugin if patching is not immediately feasible. 7. Educate site administrators and developers about secure coding practices to prevent similar injection flaws in custom plugins or themes.