CVE-2025-30622 in PostMash Plugin
Summary
by MITRE • 04/01/2025
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in torsteino PostMash allows SQL Injection. This issue affects PostMash: from n/a through 1.0.3.
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Analysis
by VulDB Data Team • 04/01/2025
The vulnerability identified as CVE-2025-30622 represents a critical SQL injection flaw within the torsteino PostMash plugin, specifically impacting versions ranging from an unspecified initial state through version 1.0.3. This vulnerability falls under the well-established CWE-89 category, which classifies SQL injection as a severe security weakness occurring when user input is improperly handled within SQL command construction. The flaw enables attackers to manipulate database queries by injecting malicious SQL code through input fields that are not adequately sanitized or parameterized. The affected PostMash plugin likely processes user-supplied data without proper input validation or escaping mechanisms, creating an exploitable entry point for malicious actors seeking to compromise the underlying database infrastructure.
The technical execution of this vulnerability occurs when the plugin fails to properly neutralize special SQL characters and elements within user-controllable input parameters. This improper handling allows attackers to inject arbitrary SQL commands that execute within the database context, potentially enabling unauthorized data access, modification, or deletion. The vulnerability's impact extends beyond simple data theft as it can facilitate complete database compromise, privilege escalation, and persistent access to sensitive information stored within the system. Attackers could leverage this weakness to extract confidential user data, modify database records, or even execute administrative commands on the database server, depending on the privileges granted to the database user account used by the PostMash plugin.
From an operational standpoint, this vulnerability poses significant risks to organizations relying on the affected PostMash plugin for their database operations. The attack surface is particularly concerning as it affects a wide range of plugin versions, suggesting that the flaw existed for an extended period without proper mitigation. The vulnerability aligns with ATT&CK technique T1071.005 for application layer protocol usage and T1566.001 for spearphishing via social media, as attackers could exploit this weakness through web application interfaces or by crafting malicious payloads targeting the plugin's input handling mechanisms. Organizations using WordPress platforms with this vulnerable plugin face potential data breaches, compliance violations, and reputational damage, particularly if the affected database contains sensitive user information or business-critical data.
Mitigation strategies should prioritize immediate plugin updates to versions that address the SQL injection vulnerability, as recommended by the vendor. Organizations must implement proper input validation and parameterized queries throughout their application code to prevent similar issues in the future. The implementation of web application firewalls and database activity monitoring systems can provide additional layers of protection against exploitation attempts. Security teams should conduct comprehensive vulnerability assessments of all installed plugins and themes, particularly focusing on input handling mechanisms and database interaction patterns. Regular security audits and code reviews should emphasize proper SQL query construction practices, including the use of prepared statements and proper escaping functions to prevent injection vulnerabilities. Additionally, implementing principle of least privilege for database accounts used by web applications can limit the potential impact of successful exploitation attempts, ensuring that even if an attacker gains access through SQL injection, they cannot perform destructive operations beyond the limited permissions granted to the compromised database user account.