CVE-2006-4016 in toendaCMS
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in /toendaCMS in toendaCMS stable 1.0.3 and earlier, and unstable 1.1 and earlier, allows remote attackers to inject arbitrary web script or HTML via the s parameter.
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Analysis
by VulDB Data Team • 08/01/2018
The vulnerability identified as CVE-2006-4016 represents a classic cross-site scripting flaw affecting the toendaCMS content management system. This issue manifests in both stable versions 1.0.3 and earlier, as well as unstable versions 1.1 and earlier, indicating a persistent security weakness that persisted across multiple release cycles. The vulnerability specifically targets the handling of user input through the s parameter, which serves as an entry point for malicious actors to inject arbitrary web scripts or HTML content into the affected system.
The technical implementation of this XSS vulnerability stems from insufficient input validation and output encoding within the toendaCMS application. When the s parameter is processed by the system, it fails to properly sanitize or escape user-supplied data before rendering it in the web page context. This allows attackers to craft malicious payloads that execute within the browser context of legitimate users who visit affected pages. The vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws, where insufficient validation of input allows malicious scripts to be executed in the victim's browser. The attack vector operates remotely, meaning that threat actors can exploit this weakness without requiring local system access or authentication credentials.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable sophisticated attack chains that compromise user sessions, steal sensitive information, or redirect users to malicious websites. An attacker could potentially exploit this weakness to hijack user sessions, capture authentication tokens, or perform actions on behalf of authenticated users. The vulnerability's remote nature makes it particularly dangerous as it can be exploited from anywhere on the internet, affecting any user who interacts with the compromised toendaCMS instance. This type of vulnerability aligns with ATT&CK technique T1566 which covers the initial access phase through spearphishing attachments and links, where XSS can serve as a delivery mechanism for more sophisticated attacks.
Mitigation strategies for CVE-2006-4016 should prioritize immediate patching of affected systems to the latest stable versions of toendaCMS where the vulnerability has been addressed. Organizations should implement comprehensive input validation mechanisms that properly encode or sanitize all user-supplied data before processing or rendering it in web contexts. The implementation of Content Security Policy headers can provide additional defense-in-depth measures to prevent unauthorized script execution. Regular security assessments and input validation testing should be conducted to identify similar weaknesses in other applications. Security teams should also consider implementing web application firewalls to detect and block malicious payloads targeting this specific vulnerability pattern. The remediation process should include thorough testing to ensure that the patch does not introduce regressions in existing functionality while maintaining the system's core capabilities.