CVE-2025-30784 in WP Subscription Forms Plugin
Summary
by MITRE • 03/27/2025
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in WP Shuffle WP Subscription Forms allows SQL Injection. This issue affects WP Subscription Forms: from n/a through 1.2.3.
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Analysis
by VulDB Data Team • 03/27/2025
The vulnerability identified as CVE-2025-30784 represents a critical SQL injection flaw within the WP Shuffle WP Subscription Forms plugin for WordPress systems. This weakness stems from inadequate input validation and sanitization mechanisms that fail to properly neutralize special elements within SQL commands. The vulnerability exists in versions ranging from an unspecified starting point through version 1.2.3, indicating a broad attack surface that could potentially affect numerous installations across different WordPress environments. The flaw allows attackers to inject malicious SQL code through improperly validated user inputs, which can then be executed by the database backend.
The technical implementation of this vulnerability aligns with CWE-89, which specifically addresses SQL injection weaknesses where untrusted data is incorporated into SQL commands without proper sanitization or parameterization. The flaw occurs when user-supplied data enters the application through subscription form fields or related input mechanisms, and this data is subsequently concatenated directly into SQL queries without appropriate escaping or parameter binding. Attackers can exploit this by crafting malicious inputs that manipulate the intended SQL query structure, potentially leading to unauthorized data access, data modification, or complete database compromise. The vulnerability's impact is exacerbated by the fact that it affects the core subscription functionality, which typically handles sensitive user information such as email addresses, personal details, and subscription preferences.
From an operational perspective, this vulnerability creates significant risks for WordPress administrators and site owners who rely on the WP Subscription Forms plugin for managing user subscriptions and data collection. The attack surface is particularly concerning because subscription forms are commonly used to gather user information, making the potential for data breaches substantial. An attacker who successfully exploits this vulnerability could extract sensitive user data, modify subscription records, or even escalate privileges within the database. The impact extends beyond simple data theft, as this vulnerability could enable attackers to gain deeper access to the WordPress installation, potentially leading to full system compromise through subsequent attacks. The vulnerability's presence in the plugin's database interaction layer means that any form submission could serve as an attack vector, making it particularly dangerous for high-traffic sites or those handling sensitive information.
Mitigation strategies for CVE-2025-30784 should prioritize immediate patching of the WP Shuffle WP Subscription Forms plugin to the latest version that addresses this vulnerability. Organizations should implement input validation measures at multiple layers, including client-side and server-side sanitization, to reduce the risk of exploitation. The implementation of prepared statements or parameterized queries should be enforced throughout the plugin's codebase to prevent direct concatenation of user inputs into SQL commands. Additionally, database access controls should be reviewed and restricted to minimize potential damage from successful attacks, ensuring that the application database user has only necessary privileges. Network-level protections such as web application firewalls and intrusion detection systems can provide additional defense-in-depth measures. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other plugins and themes. The vulnerability's classification under ATT&CK technique T1190 highlights the importance of defending against exploitation of web application vulnerabilities through proper input validation and database security measures. Organizations should also consider implementing automated patch management systems to ensure timely updates and reduce the window of exposure for known vulnerabilities.