CVE-2006-1640 in CzarNews
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in news.php in CzarNews 1.14 allows remote attackers to inject arbitrary web script or HTML via the email parameter.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 07/22/2018
The CVE-2006-1640 vulnerability represents a classic cross-site scripting flaw in the CzarNews 1.14 content management system that specifically targets the news.php script. This vulnerability resides in the email parameter handling mechanism, where user-supplied input is not properly sanitized or validated before being rendered in web responses. The flaw enables remote attackers to inject malicious web scripts or HTML code directly into the application's output, creating a persistent security risk that can affect all users interacting with the vulnerable system. This type of vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a critical web application security weakness that has been consistently identified as one of the top ten web application security risks by OWASP.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious payload containing script code and submits it through the email parameter of the news.php endpoint. When the application processes this input and displays it without proper encoding or filtering, the injected code executes within the context of other users' browsers who view the affected content. This creates a dangerous scenario where attackers can steal session cookies, redirect users to malicious sites, deface the website, or perform actions on behalf of authenticated users. The vulnerability demonstrates poor input validation practices and highlights the critical importance of implementing proper output encoding mechanisms for all user-supplied data.
The operational impact of CVE-2006-1640 extends beyond simple data theft or defacement, as it provides attackers with a foothold for more sophisticated attacks within the target environment. Once an attacker successfully injects malicious code, they can establish persistent access patterns, harvest sensitive information from user sessions, or use the compromised system as a launch point for further attacks against the broader network infrastructure. This vulnerability directly violates the principle of least privilege and can lead to complete system compromise if the affected application has elevated permissions or access to sensitive data. The attack surface is particularly concerning given that email parameters are commonly used in contact forms and user registration processes, making them prime targets for exploitation.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security architecture improvements. The primary fix involves implementing proper input validation and output encoding mechanisms that sanitize all user-supplied data before it is processed or displayed. This includes applying strict validation rules for email formats, implementing proper HTML encoding for all dynamic content, and establishing comprehensive input filtering that removes or escapes potentially dangerous characters. Organizations should also consider implementing Content Security Policies to prevent unauthorized script execution, deploy web application firewalls to detect and block malicious payloads, and conduct regular security testing to identify similar vulnerabilities across their entire application portfolio. The ATT&CK framework categorizes this type of vulnerability under T1059.007 for Scripting and T1566.001 for Phishing, emphasizing the need for layered defensive measures that address both the exploitation vector and potential post-compromise activities.