CVE-2024-4295 is a critical SQL Injection vulnerability identified in the 'Email Subscribers by Icegram Express' WordPress plugin, which is widely used for email marketing, newsletters, and automation in WordPress and WooCommerce environments. The vulnerability stems from improper neutralization of special elements in SQL commands (CWE-89), specifically due to insufficient escaping and lack of prepared statements on the 'hash' parameter. This parameter is user-supplied and directly incorporated into SQL queries without adequate sanitization, enabling unauthenticated attackers to append arbitrary SQL code. Exploitation can lead to unauthorized disclosure of sensitive data, modification of database contents, or denial of service by corrupting database integrity. The vulnerability affects all plugin versions up to and including 5.7.20. The CVSS v3.1 base score is 9.8, reflecting the vulnerability's ease of exploitation (network vector, no privileges required, no user interaction) and its impact on confidentiality, integrity, and availability. Although no public exploits have been reported, the critical nature of this flaw necessitates immediate attention. The vulnerability was publicly disclosed on June 5, 2024, with Wordfence as the assigner. No official patches were linked at the time of disclosure, increasing the urgency for users to monitor for updates or implement interim mitigations.

The impact of CVE-2024-4295 is severe for organizations using the affected plugin. Successful exploitation can lead to full compromise of the plugin's database, exposing sensitive subscriber information such as email addresses, personal data, and potentially other linked data within the WordPress environment. Attackers could also manipulate or delete data, disrupting email marketing operations and damaging business reputation. Given the plugin’s integration with WooCommerce, there is a risk of broader compromise affecting e-commerce transactions and customer data. The vulnerability’s unauthenticated nature means attackers can exploit it remotely without any credentials, increasing the attack surface significantly. This can lead to data breaches, regulatory compliance violations (e.g., GDPR, CCPA), financial losses, and operational downtime. The widespread use of WordPress and this plugin in small to medium businesses globally amplifies the potential scale of impact.

1. Immediately monitor for and apply official patches or updates from Icegram once released. 2. Until patches are available, implement Web Application Firewall (WAF) rules to detect and block SQL injection attempts targeting the 'hash' parameter. 3. Employ input validation and sanitization at the application level to reject suspicious or malformed inputs for the 'hash' parameter. 4. Use parameterized queries or prepared statements in any custom code interacting with the plugin’s database to prevent injection. 5. Regularly audit and monitor database access logs for unusual queries or patterns indicative of exploitation attempts. 6. Limit database user privileges associated with the WordPress application to the minimum necessary to reduce impact. 7. Educate administrators on the risks and signs of exploitation to enable rapid incident response. 8. Consider temporarily disabling the plugin if critical until a secure version is available, especially in high-risk environments.