CVE-2006-2536 in Destiney Links Script
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Destiney Links Script 2.1.2 allows remote attackers to inject arbitrary web script or HTML via the (1) "Search" (term parameter in index.php) and (2) "Add a Site" (add.php) fields.
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Analysis
by VulDB Data Team • 09/07/2017
The vulnerability identified as CVE-2006-2536 represents a critical cross-site scripting flaw within the Destiny Links Script version 2.1.2 web application. This security weakness resides in the application's handling of user input through specific parameters that are processed without adequate sanitization or validation. The vulnerability affects two primary entry points: the search functionality where the term parameter in index.php fails to properly filter user-supplied data, and the site submission mechanism through add.php where similar input validation deficiencies exist. These flaws create an environment where malicious actors can execute arbitrary web scripts or HTML code within the context of other users' browsers, potentially leading to unauthorized actions and data theft.
The technical exploitation of this vulnerability occurs through the manipulation of HTTP parameters that are directly incorporated into the web application's response without proper encoding or sanitization. When users submit search queries or add new sites through the affected interface, the application processes these inputs and reflects them back to the user's browser without adequate protection mechanisms. This allows attackers to craft malicious payloads that include script tags or other HTML elements designed to execute within the victim's browser context. The vulnerability specifically aligns with CWE-79 which categorizes cross-site scripting as a code injection flaw that enables attackers to execute scripts in the victim's browser, potentially leading to session hijacking, defacement, or data exfiltration.
The operational impact of this vulnerability extends beyond simple script execution, as it fundamentally compromises the integrity of user sessions and the overall security posture of the web application. Attackers can leverage this flaw to steal session cookies, redirect users to malicious sites, inject phishing content, or perform actions on behalf of authenticated users. The attack surface is particularly concerning because it affects core functionality of the application - search and site submission features that are likely to be frequently used by legitimate users. This creates a persistent threat vector where any user interacting with the application could become a victim of the XSS attack, potentially compromising the entire user base and the application's reputation.
Mitigation strategies for this vulnerability must address both the immediate security gap and establish preventive measures to avoid similar issues in future development cycles. The primary remediation involves implementing comprehensive input validation and output encoding across all user-facing parameters, particularly those used in search and form submission functionality. Developers should employ proper HTML escaping techniques for all dynamic content that originates from user input, ensuring that special characters are properly encoded before being rendered in the browser. Additionally, implementing a Content Security Policy (CSP) header can provide an additional layer of protection by restricting the sources from which scripts can be executed within the application context. The fix should also include regular security code reviews and input sanitization routines to prevent similar vulnerabilities from emerging in other parts of the application, aligning with the principles of secure coding practices recommended in the OWASP Top Ten and NIST cybersecurity guidelines. Organizations should also consider implementing web application firewalls and monitoring systems to detect and prevent exploitation attempts of this class of vulnerability.