CVE-2006-6466 in WikyBlog
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in WBmap.php in WikyBlog 1.3.2 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) key, (2) d, (3) l, or (4) v parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information. NOTE: CVE disputes the l vector because l is validated by ctype_alpha before use.
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Analysis
by VulDB Data Team • 08/10/2018
The vulnerability identified as CVE-2006-6466 represents a critical cross-site scripting weakness affecting WikyBlog version 1.3.2 and earlier installations. This security flaw exists within the WBmap.php script and demonstrates the classic pattern of insufficient input validation that enables malicious actors to execute arbitrary web scripts or HTML content within the context of victim browsers. The vulnerability manifests through four distinct parameter vectors including key, d, l, and v, each providing potential entry points for attackers to inject malicious payloads that can persist and execute in the victim's browser environment. The issue stems from the application's failure to properly sanitize or escape user-supplied input before incorporating it into dynamic web content, creating an environment where attacker-controlled data can be interpreted as executable code rather than mere text.
The technical exploitation of this vulnerability follows established patterns that align with CWE-79, which specifically addresses cross-site scripting flaws in software applications. Attackers can leverage these parameters to craft malicious URLs that, when visited by unsuspecting users, will execute unauthorized scripts within the target user's browser session. The vulnerability's impact extends beyond simple script execution to potentially enable session hijacking, credential theft, and other sophisticated attacks that can compromise user accounts and system integrity. The fact that the vulnerability affects multiple parameter vectors increases the attack surface and makes it more difficult for administrators to implement comprehensive protection measures, as each vector requires individual mitigation strategies.
The operational implications of this vulnerability are significant for organizations utilizing WikyBlog versions prior to the patched release. Users who visit compromised web pages or click on malicious links containing the crafted payloads could have their sessions hijacked, sensitive information stolen, or their browsers redirected to malicious sites. The attack requires no special privileges or authentication from the attacker, making it particularly dangerous as it can be exploited through social engineering campaigns or by simply embedding malicious links in compromised websites. The vulnerability's persistence across multiple parameters also suggests a systemic issue in the application's input handling architecture rather than isolated code flaws, indicating that similar vulnerabilities might exist throughout the application's codebase.
Security mitigations for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms across all user-supplied parameters. The most effective immediate solution involves sanitizing all input data through proper escaping techniques before rendering it in web pages, with specific attention to the key, d, and v parameters mentioned in the vulnerability description. Organizations should also implement content security policies to limit script execution capabilities and deploy web application firewalls to detect and block malicious requests. The vulnerability's classification under CWE-79 underscores the need for robust application-level defenses including proper HTML escaping, JavaScript encoding, and input validation routines that prevent malicious data from being interpreted as executable code. Additionally, regular security assessments and code reviews should be conducted to identify similar patterns that might exist in other parts of the application or related systems, ensuring that the vulnerability is not just patched but that similar issues are prevented from occurring in the future.