CVE-2006-0318 in BlogPHP
Summary
by MITRE
SQL injection vulnerability in index.php in BlogPHP 1.0, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands and bypass authentication via the username parameter in a login action.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 08/03/2025
The vulnerability described in CVE-2006-0318 represents a critical sql injection flaw within the BlogPHP 1.0 content management system that specifically targets the index.php file during login operations. This vulnerability exploits a fundamental weakness in input validation and query construction that occurs when the php configuration parameter magic_quotes_gpc is disabled, creating an environment where malicious input can directly manipulate database queries. The flaw is particularly dangerous because it affects the authentication mechanism itself, allowing attackers to bypass login controls and gain unauthorized access to the system.
The technical implementation of this vulnerability stems from improper handling of user-supplied input within the username parameter during login attempts. When magic_quotes_gpc is disabled, php does not automatically escape special characters in GET, POST, and COOKIE data, leaving the application vulnerable to malicious input that can alter the intended sql query structure. Attackers can craft specially formatted usernames that inject additional sql commands into the query execution flow, potentially allowing them to extract database contents, modify user accounts, or completely bypass authentication mechanisms. This type of vulnerability falls under the CWE-89 category of sql injection, which is classified as a high-risk vulnerability in the CWE top 25 most dangerous software weaknesses.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it provides attackers with the capability to manipulate the entire database backend of the BlogPHP system. Successful exploitation could result in complete data compromise including user credentials, blog content, and potentially system files. The vulnerability's exploitation requires minimal technical skill and can be automated, making it particularly attractive to malicious actors. From an att&ck framework perspective, this vulnerability maps to the privilege escalation and credential access phases, allowing attackers to move laterally within the system once initial access is gained. The attack surface is limited to the login functionality, but the consequences are severe due to the authentication bypass nature of the exploit.
Mitigation strategies for this vulnerability should focus on immediate implementation of input validation and parameterized queries to prevent sql injection attacks. The most effective immediate fix involves enabling magic_quotes_gpc or implementing proper input sanitization techniques that escape or validate all user-supplied data before database interaction. Organizations should also consider upgrading from the vulnerable BlogPHP 1.0 version to a patched release or migrating to more modern content management systems. Additionally, implementing web application firewalls and database activity monitoring can help detect and prevent exploitation attempts. The vulnerability demonstrates the critical importance of proper input validation and the dangers of relying on server configuration settings for security rather than implementing robust application-level defenses. Regular security audits and vulnerability assessments should be conducted to identify similar flaws in other applications and ensure that security measures are comprehensive and layered.