CVE-2010-0641 in Collaboration Server
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in webline/html/admin/wcs/LoginPage.jhtml in Cisco Collaboration Server (CCS) 5 allows remote attackers to inject arbitrary web script or HTML via the dest parameter.
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Analysis
by VulDB Data Team • 04/30/2026
The vulnerability identified as CVE-2010-0641 represents a critical cross-site scripting flaw within Cisco Collaboration Server version 5, specifically affecting the LoginPage.jhtml component. This issue resides in the webline/html/admin/wcs/LoginPage.jhtml file where the application fails to properly validate or sanitize user input parameters before incorporating them into web responses. The vulnerability is particularly concerning because it affects the authentication and administrative interfaces of the collaboration server, potentially exposing sensitive system components to malicious actors.
The technical implementation of this vulnerability stems from improper input validation of the dest parameter within the login page functionality. When users are redirected to the login page, the application accepts the dest parameter without adequate sanitization, allowing attackers to inject malicious JavaScript code or HTML content. This flaw enables attackers to execute arbitrary scripts in the context of the victim's browser session, potentially leading to session hijacking, credential theft, or unauthorized administrative access to the collaboration server. The vulnerability classifies under CWE-79 which specifically addresses Cross-Site Scripting flaws in web applications, where input data is not properly validated or escaped before being rendered in web pages.
The operational impact of this vulnerability extends beyond simple script injection, as it can be exploited to gain unauthorized access to administrative functions of the Cisco Collaboration Server. Attackers could manipulate the dest parameter to redirect authenticated users to malicious sites, steal session cookies, or even perform actions on behalf of legitimate users. Given that the vulnerability affects the login page functionality, it represents a critical attack vector that could compromise the entire authentication system of the collaboration server. The exploitation requires minimal technical skill and can be accomplished through simple HTTP parameter manipulation, making it particularly dangerous in environments where administrative access is required for system maintenance and configuration.
Organizations utilizing Cisco Collaboration Server version 5 should implement immediate mitigations including input validation and output encoding of all user-supplied parameters, particularly those used in authentication flows. The recommended approach involves implementing proper parameter sanitization and HTML escaping mechanisms within the LoginPage.jhtml component to prevent malicious content from being executed in user browsers. Security measures should also include monitoring for unusual parameter values in authentication requests and implementing web application firewalls to detect and block suspicious input patterns. Additionally, administrators should consider implementing the principle of least privilege and multi-factor authentication to reduce the potential impact of successful exploitation attempts. This vulnerability aligns with ATT&CK technique T1566 which covers the exploitation of web application vulnerabilities for initial access, and T1078 which addresses legitimate credentials usage for persistence and privilege escalation.