CVE-2026-28136 identifies a critical SQL Injection vulnerability in the VeronaLabs WP SMS plugin for WordPress, affecting all versions up to and including 6.9.12. The vulnerability stems from improper neutralization of special characters in SQL commands, which allows attackers to inject malicious SQL code. This can enable unauthorized access to the underlying database, potentially exposing sensitive information such as user data, SMS content, or configuration details. The attack vector typically involves sending crafted input through plugin interfaces that interact with the database without proper sanitization or parameterization. Although no known exploits are currently in the wild, the public disclosure of this vulnerability increases the risk of exploitation by attackers. The plugin is widely used in WordPress environments to facilitate SMS messaging, making it a valuable target for attackers seeking to compromise websites or extract confidential data. The absence of a CVSS score indicates the need for a manual severity assessment. The vulnerability does not require authentication or user interaction, increasing its risk profile. The lack of an available patch at the time of disclosure necessitates immediate mitigation efforts by administrators.

The impact of CVE-2026-28136 is significant for organizations using the WP SMS plugin. Successful exploitation can lead to unauthorized disclosure of sensitive data stored in the WordPress database, including user credentials, SMS messages, and potentially other confidential information. Attackers may also modify or delete database records, causing data integrity issues or denial of service. This can result in reputational damage, regulatory non-compliance, and financial losses. Since WordPress powers a large portion of websites globally, and WP SMS is a popular plugin for SMS integration, the scope of affected systems is broad. The vulnerability's ease of exploitation without authentication means that any exposed installation is at risk, increasing the likelihood of automated attacks and mass exploitation attempts. Organizations relying on WP SMS for critical communications may face operational disruptions if the database is compromised or corrupted.

1. Monitor VeronaLabs official channels for security patches addressing CVE-2026-28136 and apply them immediately upon release. 2. Until patches are available, implement strict input validation and sanitization on all user inputs interacting with the WP SMS plugin, ideally using parameterized queries or prepared statements if customization is possible. 3. Deploy a Web Application Firewall (WAF) with rules designed to detect and block SQL Injection attempts targeting WordPress plugins. 4. Restrict database user privileges for the WordPress installation to the minimum necessary to limit the impact of a potential injection. 5. Regularly audit and monitor database logs and web server logs for suspicious activity indicative of SQL Injection attempts. 6. Consider temporarily disabling or uninstalling the WP SMS plugin if it is not critical to operations until a secure version is available. 7. Educate site administrators on the risks of SQL Injection and the importance of timely patching and security hygiene.