CVE-2006-5889 in BrewBlogger
Summary
by MITRE
SQL injection vulnerability in printLog.php in BrewBlogger (BB) 1.3.1 allows remote attackers to execute arbitrary SQL commands via the id parameter.
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Analysis
by VulDB Data Team • 04/27/2026
The CVE-2006-5889 vulnerability represents a critical sql injection flaw in BrewBlogger version 1.3.1 that affects the printLog.php script. This vulnerability resides in the handling of user-supplied input through the id parameter, creating a pathway for remote attackers to manipulate database queries. The flaw demonstrates a classic lack of input validation and proper parameter sanitization that has been a persistent issue in web application security since the early days of internet-based systems. BrewBlogger, being a web-based application for brewing recipe management, exposes this vulnerability through its printLog.php endpoint which processes user requests without adequate protection against malicious input manipulation.
The technical nature of this vulnerability aligns with CWE-89, which specifically addresses sql injection weaknesses where untrusted data is incorporated into sql commands without proper sanitization or parameterization. The id parameter in printLog.php serves as the attack vector where an attacker can inject malicious sql code that gets executed by the database engine. This occurs because the application directly incorporates user input into sql queries without employing prepared statements or proper input filtering mechanisms. The vulnerability essentially allows an attacker to bypass authentication, extract sensitive data, modify database records, or even execute destructive operations on the underlying database system.
Operationally, this vulnerability creates severe consequences for systems running BrewBlogger 1.3.1, as it enables remote code execution through database manipulation. Attackers can leverage this flaw to gain unauthorized access to brewing recipe data, user credentials, and potentially escalate privileges within the application's database environment. The impact extends beyond simple data theft to include full system compromise, as sql injection attacks can provide attackers with the ability to execute system commands or access other database resources. This vulnerability particularly affects small brewing communities and homebrewers who may not have robust security monitoring in place, making them more susceptible to exploitation. The attack surface is widened by the fact that no authentication is required to exploit this vulnerability, making it particularly dangerous for publicly accessible web applications.
Mitigation strategies for CVE-2006-5889 should focus on implementing proper input validation and parameterized queries to prevent sql injection attacks. The most effective solution involves updating BrewBlogger to a patched version that addresses this specific vulnerability, as the original 1.3.1 release contained no built-in protections against such attacks. Organizations should also implement web application firewalls that can detect and block sql injection patterns, employ proper database access controls with least privilege principles, and conduct regular security assessments to identify similar vulnerabilities. The remediation process should include code review to ensure all user inputs are properly sanitized and that the application uses prepared statements or stored procedures instead of dynamic sql construction. Additionally, implementing proper error handling that does not expose database structure information to end users can help reduce the attack surface and prevent information disclosure that could aid attackers in exploiting similar vulnerabilities.