CVE-2025-9073 in All in One Minifier Plugin
Summary
by MITRE • 09/11/2025
The All in one Minifier plugin for WordPress is vulnerable to SQL Injection via the 'post_id' parameter in all versions up to, and including, 3.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
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Analysis
by VulDB Data Team • 09/11/2025
The CVE-2025-9073 vulnerability affects the All in one Minifier plugin for WordPress, specifically versions up to and including 3.2, presenting a critical SQL injection flaw that compromises database security. This vulnerability arises from inadequate input sanitization and improper query preparation mechanisms within the plugin's codebase, creating an exploitable condition that allows attackers to manipulate database queries through the 'post_id' parameter. The flaw represents a direct violation of secure coding practices and demonstrates poor input validation controls that enable malicious actors to inject arbitrary SQL commands into existing database operations.
The technical implementation of this vulnerability stems from the plugin's failure to properly escape or sanitize user-supplied input before incorporating it into SQL queries. When the 'post_id' parameter is processed, the application does not employ prepared statements or proper input sanitization techniques, allowing attackers to append malicious SQL fragments to existing queries. This lack of input validation creates a pathway for unauthenticated attackers to manipulate the database structure and potentially extract sensitive information from the WordPress installation. The vulnerability aligns with CWE-89, which specifically addresses SQL injection flaws where insufficient escaping of user-supplied data leads to unauthorized database access.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to perform extensive database manipulation and information extraction. An unauthenticated attacker can exploit this flaw to retrieve administrative credentials, user information, configuration details, and other sensitive data stored within the WordPress database. The vulnerability's severity is amplified by the fact that it affects a widely used plugin, potentially exposing numerous WordPress installations to unauthorized access and data compromise. This type of attack vector is particularly concerning as it can be executed without requiring authentication, making it accessible to any attacker with knowledge of the vulnerable plugin version.
Mitigation strategies for CVE-2025-9073 should prioritize immediate plugin updates to versions that address the SQL injection vulnerability through proper input sanitization and prepared statement implementation. System administrators must ensure that all WordPress installations are regularly updated with the latest security patches and that the vulnerable plugin is either removed or upgraded to a secure version. Additional defensive measures include implementing web application firewalls to detect and block suspicious SQL injection attempts, monitoring database access logs for anomalous query patterns, and conducting regular security assessments of installed plugins. Organizations should also consider implementing database query auditing and access controls to limit the potential damage from successful exploitation attempts. The vulnerability demonstrates the critical importance of proper input validation and prepared statement usage in preventing SQL injection attacks, aligning with ATT&CK technique T1190 for exploiting vulnerabilities in web applications and T1071.004 for application layer protocol usage in command and control communications.