CVE-2006-3025 in Lucid Calendar
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Cal.PHP3 in Chris Lea Lucid Calendar 0.22 allows remote attackers to inject arbitrary web script or HTML via unspecified parameters. NOTE: the provenance of this information is unknown; the details are obtained from third party information.
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Analysis
by VulDB Data Team • 09/16/2017
The vulnerability identified as CVE-2006-3025 represents a cross-site scripting flaw within the Cal.PHP3 component of Chris Lea Lucid Calendar version 0.22. This type of vulnerability falls under the broader category of input validation weaknesses that have been classified by CWE as CWE-79, which specifically addresses Improper Neutralization of Input During Web Page Generation. The vulnerability exists in the calendar application's web interface where user-supplied data is not properly sanitized before being rendered back to users, creating an opportunity for malicious actors to execute arbitrary scripts in the context of other users' browsers.
The technical exploitation of this vulnerability occurs through unspecified parameters within the Cal.PHP3 module, which suggests that multiple entry points within the application may be susceptible to injection attacks. When remote attackers craft malicious payloads and submit them through these parameters, the application fails to properly validate or escape the input before incorporating it into dynamic web content. This allows attackers to inject HTML tags or JavaScript code that gets executed by the victim's browser when they view the affected calendar pages. The vulnerability's classification as a remote attack vector means that no local access or authentication is required to exploit the flaw, making it particularly dangerous in web applications that are publicly accessible.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform various malicious activities including session hijacking, credential theft, defacement of calendar content, or redirection to malicious websites. The lack of specific information about the exact parameter names or injection points makes this vulnerability particularly challenging to defend against, as security teams cannot easily identify and patch specific code locations. This type of vulnerability directly maps to ATT&CK technique T1566.001, which covers the use of malicious content in web applications, and represents a classic example of how insufficient input validation can compromise web application security. The vulnerability's age and the limited information available about its precise nature suggest that it likely affects older web applications that may not have undergone proper security testing or code review processes.
Mitigation strategies for this vulnerability should include implementing comprehensive input validation and output encoding mechanisms throughout the application's codebase, particularly in areas where user data is processed and displayed. Organizations should deploy web application firewalls that can detect and block common XSS attack patterns, while also implementing proper content security policies to prevent unauthorized script execution. The most effective long-term solution involves conducting thorough code reviews and security assessments to identify and remediate similar input validation flaws, ensuring that all user-supplied data is properly sanitized before being incorporated into web pages. Additionally, implementing proper error handling and logging mechanisms can help detect potential exploitation attempts, while regular security updates and patches should be applied to address known vulnerabilities in third-party components.