CVE-2025-3107 is a time-based SQL Injection vulnerability identified in the 'orderby' parameter of the contrid Newsletters plugin for WordPress, affecting all versions up to and including 4.9.9.8. The vulnerability arises from improper neutralization of special elements in SQL commands (CWE-89), specifically due to insufficient escaping of user-supplied input and lack of prepared statements or parameterized queries in the plugin's code. Authenticated attackers with Contributor-level access or higher can exploit this flaw by injecting malicious SQL code into the 'orderby' parameter, which is used directly in SQL queries without adequate sanitization. This enables attackers to append additional SQL queries, facilitating extraction of sensitive information from the backend database through time-based blind SQL Injection techniques. The attack vector requires network access (remote) and low attack complexity, with no user interaction needed beyond authentication. The vulnerability impacts confidentiality by potentially exposing sensitive data but does not affect data integrity or availability. Although no known exploits are currently reported in the wild, the presence of this vulnerability in a widely used WordPress plugin poses a significant risk. The CVSS v3.1 base score is 6.5, reflecting medium severity with network attack vector, low complexity, and privileges required. The vulnerability was reserved in early April 2025 and published in May 2025, with enrichment from CISA. No official patches or fixes are currently linked, indicating the need for immediate mitigation steps by users.

The primary impact of CVE-2025-3107 is the potential unauthorized disclosure of sensitive information stored in the WordPress database, including user data, newsletter subscriber details, and possibly other confidential content managed by the plugin. Since the vulnerability allows SQL Injection via an authenticated Contributor-level user, attackers who gain such access can escalate their capabilities to extract data beyond their normal permissions. This can lead to privacy violations, data breaches, and compliance issues for organizations relying on the Newsletters plugin. Although the vulnerability does not directly compromise data integrity or availability, the exposure of sensitive data can have severe reputational and financial consequences. Organizations with large subscriber bases or sensitive customer information are particularly at risk. The exploitation ease is moderate due to the need for authenticated access, but the widespread use of WordPress and common contributor roles increase the attack surface. Additionally, the lack of known exploits in the wild suggests a window of opportunity for defenders to remediate before active exploitation occurs.

1. Immediately restrict Contributor-level user privileges to only trusted individuals and review existing contributor accounts for suspicious activity. 2. Implement strict input validation and sanitization on all user-supplied parameters, especially 'orderby', using allowlists or parameterized queries where possible. 3. Monitor database query logs for unusual or time-delayed responses indicative of SQL Injection attempts. 4. Employ Web Application Firewalls (WAFs) with rules designed to detect and block SQL Injection payloads targeting WordPress plugins. 5. Regularly back up WordPress databases and plugin configurations to enable recovery in case of compromise. 6. Engage with the plugin vendor or community to obtain or develop patches addressing this vulnerability and apply them promptly once available. 7. Consider temporarily disabling or replacing the Newsletters plugin if immediate patching is not feasible, especially on high-risk or sensitive sites. 8. Educate site administrators and contributors about the risks of SQL Injection and the importance of secure coding and access controls. 9. Use security plugins that can detect anomalous behavior or privilege escalation attempts within WordPress environments.