CVE-2026-79322 in Blog Plugin
Summary
by MITRE • 09/09/2026
SQL injection in the RelatedProduct block in Mageplaza Blog for Magento 2 (mageplaza/magento-2-blog-extension) through 4.3.2 allows remote unauthenticated attackers to execute arbitrary SQL commands and read arbitrary database contents via the id parameter to /mpblog/post/view.
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Analysis
by VulDB Data Team • 09/09/2026
The vulnerability identified in the Mageplaza Blog extension for Magento 2, specifically within versions up to 4.3.2, represents a critical security flaw rooted in improper input validation and sanitization mechanisms. This SQL injection vulnerability is located within the RelatedProduct block functionality of the module. The core technical issue arises from the application's failure to properly sanitize user-supplied data before incorporating it into database queries. Specifically, the id parameter passed via the URL path /mpblog/post/view is directly concatenated or interpolated into an SQL statement without adequate protection against malicious payloads. This lack of prepared statements or strict type casting allows remote attackers to manipulate the structure of the underlying SQL query executed by the backend database system.
From a technical perspective, this flaw falls under the category of CWE-89, which defines Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection. The vulnerability is particularly severe because it allows for remote unauthenticated access. An attacker does not need valid credentials or to be logged into the Magento admin panel to exploit this weakness. By crafting a malicious HTTP request with specially crafted values in the id parameter, such as appending standard SQL injection syntax like single quotes followed by logical operators and subqueries, an attacker can alter the intended logic of the database query. This capability enables the extraction of sensitive data stored within the Magento database, including customer information, order history, product details, and potentially administrative credentials if they are accessible through the targeted tables.
The operational impact of this vulnerability is significant for any e-commerce platform running the affected version of the Mageplaza Blog extension. Beyond the immediate risk of data exfiltration, successful exploitation can lead to a complete compromise of the web application's integrity. Attackers may use the elevated privileges granted by the database connection to modify or delete records, deface the website content, or establish persistence mechanisms within the backend system. In severe cases, if the database server is configured with excessive permissions or runs as root on Linux systems, attackers might escalate their access further to execute operating system commands via features like INTO OUTFILE or xp_cmdshell, depending on the specific Database Management System in use. This transforms a simple data leak into a full-scale infrastructure compromise.
To mitigate this vulnerability and secure the environment against similar attacks, immediate remediation is required by upgrading the Mageplaza Blog extension to version 4.3.3 or later, where the developers have addressed these input validation issues. In addition to updating the software, administrators should implement defense-in-depth strategies. This includes deploying a Web Application Firewall that can detect and block common SQL injection patterns in HTTP requests. Furthermore, ensuring that all database connections use parameterized queries or prepared statements is essential for preventing such injections at the code level. Regular security audits and static application security testing during the development lifecycle will help identify similar flaws before they reach production environments. Adhering to OWASP guidelines for input validation and output encoding remains a best practice for maintaining robust web application security posture against injection-based attacks classified under MITRE ATT&CK technique T1059, specifically command scripting or database query manipulation variants depending on the specific exploitation vector employed by adversaries.