CVE-2006-6087 in my little weblog
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in weblog.php in my little weblog allows remote attackers to inject arbitrary web script or HTML via the action parameter.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 04/28/2026
The vulnerability identified as CVE-2006-6087 represents a classic cross-site scripting flaw within the my little weblog application's weblog.php script. This security weakness specifically targets the action parameter, which serves as an entry point for malicious input that can be exploited by remote attackers to execute arbitrary web scripts or HTML code within the context of affected user sessions. The vulnerability falls under the broader category of injection attacks and aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities in web applications. The flaw demonstrates a critical failure in input validation and output encoding practices, where user-supplied data enters the application without proper sanitization mechanisms.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious payload containing script code and passes it through the action parameter of the weblog.php endpoint. When the vulnerable application processes this input and subsequently displays it without adequate sanitization or encoding, the injected script executes within the browser of unsuspecting users who view the affected content. This type of vulnerability enables attackers to perform session hijacking, steal sensitive information, deface web pages, or redirect users to malicious sites. The attack vector is particularly dangerous because it requires no privileged access or authentication, making it accessible to any remote user who can interact with the vulnerable application's interface.
The operational impact of CVE-2006-6087 extends beyond simple data theft or display manipulation, as it fundamentally compromises the integrity and trustworthiness of the web application. When successful, this vulnerability allows attackers to execute arbitrary code in the context of legitimate user sessions, potentially leading to complete account compromise and unauthorized access to sensitive data. The attack can be amplified through social engineering techniques where users are tricked into clicking malicious links that contain the crafted XSS payloads. This vulnerability also aligns with several tactics described in the MITRE ATT&CK framework under the initial access and persistence domains, specifically leveraging web application attacks to establish footholds within target environments.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term prevention measures. The primary fix involves implementing proper input validation and output encoding mechanisms that sanitize all user-supplied data before processing or displaying it within the application context. This includes applying context-specific encoding for HTML, JavaScript, and URL parameters to prevent malicious code execution. Organizations should implement Content Security Policy (CSP) headers to limit script execution sources and employ web application firewalls to detect and block suspicious input patterns. Additionally, regular security testing including automated vulnerability scanning and manual penetration testing should be conducted to identify similar weaknesses in other application components. The remediation approach should follow secure coding practices outlined in OWASP Top Ten and other industry standards to prevent similar vulnerabilities from emerging in future development cycles.