CVE-2008-3348 in EasyDynamicPages
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in staticpages/easycalendar/index.php in MyioSoft EasyDynamicPages 3.0 trial edition (tr) allows remote attackers to inject arbitrary web script or HTML via the year parameter.
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Analysis
by VulDB Data Team • 09/30/2018
The CVE-2008-3348 vulnerability represents a classic cross-site scripting flaw within the MyioSoft EasyDynamicPages 3.0 trial edition software, specifically affecting the staticpages/easycalendar/index.php component. This vulnerability falls under the Common Weakness Enumeration category CWE-79, which defines weaknesses related to improper neutralization of input during web page generation. The flaw manifests when the application fails to properly sanitize user-supplied input, particularly the year parameter that is processed through the calendar module.
The technical exploitation of this vulnerability occurs when remote attackers submit malicious script code through the year parameter in the URL. The application directly incorporates this unsanitized input into dynamically generated web pages without adequate validation or encoding mechanisms. When other users browse to the affected calendar page, their browsers execute the injected malicious code within their browser context, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability specifically targets the calendar functionality that processes year parameters, making it a targeted vector for attackers who understand the application's URL structure and parameter handling mechanisms.
The operational impact of this vulnerability extends beyond simple script execution, as it represents a significant threat to user security and application integrity. Attackers can leverage this flaw to manipulate user sessions, steal sensitive information, or perform unauthorized actions on behalf of victims. The vulnerability affects the trial edition of EasyDynamicPages, suggesting that organizations using this software may be exposed to potential exploitation. The persistent nature of XSS vulnerabilities means that successful exploitation can lead to long-term security compromise, as attackers can establish persistent malicious scripts that execute whenever users access the vulnerable page.
Mitigation strategies for this vulnerability should focus on input validation and output encoding practices. The primary defense involves implementing proper parameter sanitization where all user inputs are validated against expected formats and encoded before being incorporated into web page content. Organizations should adopt the principle of least privilege in input handling, ensuring that only expected data types are accepted for the year parameter. Additionally, implementing Content Security Policy headers and using secure coding practices such as those recommended by the Open Web Application Security Project can significantly reduce the attack surface. The vulnerability highlights the importance of thorough input validation and output encoding in web applications, particularly for components that dynamically generate content based on user input, aligning with ATT&CK technique T1059.005 for command and scripting interpreter usage.