CVE-2010-4876 in mBlogger
Summary
by MITRE
SQL injection vulnerability in viewpost.php in mBlogger 1.0.04 allows remote attackers to execute arbitrary SQL commands via the postID parameter.
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Analysis
by VulDB Data Team • 09/21/2025
The vulnerability identified as CVE-2010-4876 represents a critical SQL injection flaw within the mBlogger 1.0.04 web application, specifically affecting the viewpost.php script. This vulnerability resides in the handling of user-supplied input through the postID parameter, which is processed without adequate sanitization or validation. The flaw allows remote attackers to manipulate the database query structure by injecting malicious SQL code through the vulnerable parameter, potentially enabling unauthorized access to sensitive data, data manipulation, or complete database compromise. The vulnerability is classified under CWE-89 which specifically addresses SQL injection flaws where untrusted data is incorporated into SQL commands without proper escaping or parameterization.
The technical exploitation of this vulnerability occurs when an attacker submits a malicious postID value to the viewpost.php endpoint. The application fails to properly escape or validate the input before incorporating it into database queries, allowing attackers to inject additional SQL statements that execute with the privileges of the database user. This type of injection can lead to various attack vectors including data extraction, modification, or deletion of database records, as well as potential privilege escalation within the database system. The attack requires no authentication and can be executed remotely, making it particularly dangerous for web applications that process user input directly without proper input validation mechanisms.
The operational impact of this vulnerability extends beyond simple data theft, as it can enable complete compromise of the application's underlying database infrastructure. Attackers can leverage the SQL injection to extract sensitive information such as user credentials, personal data, or application configuration details stored in the database. The vulnerability also permits potential modification of database content, which could lead to data integrity issues or denial of service conditions. Furthermore, the compromised database access may provide attackers with additional attack surface for lateral movement within the network infrastructure, especially if the database server hosts other sensitive systems or applications.
Mitigation strategies for CVE-2010-4876 should focus on implementing proper input validation and parameterized queries to prevent SQL injection attacks. The recommended approach involves using prepared statements or parameterized queries for all database interactions, ensuring that user input is properly escaped or sanitized before being incorporated into SQL commands. Additionally, implementing proper access controls and least privilege principles for database connections can limit the potential damage from successful exploitation attempts. Organizations should also conduct regular security assessments and vulnerability scans to identify similar injection flaws in other applications. The remediation process should include upgrading to a patched version of mBlogger or implementing web application firewalls to filter malicious SQL injection attempts. This vulnerability demonstrates the critical importance of input validation and proper database security practices, aligning with ATT&CK technique T1190 which covers SQL injection attacks and the broader category of application layer attacks that target database systems.