CVE-2005-1311 in Yappa-NG
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Yappa-NG before 2.3.2 allows remote attackers to inject arbitrary web script or HTML via unknown vectors.
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Analysis
by VulDB Data Team • 06/06/2019
The CVE-2005-1311 vulnerability represents a classic cross-site scripting flaw in the Yappa-NG content management system prior to version 2.3.2. This vulnerability falls under the CWE-79 category of Cross-Site Scripting and operates as an injection flaw that enables attackers to execute malicious scripts in the context of other users' browsers. The vulnerability exists within the web application's input validation mechanisms, specifically in how it processes user-supplied data that is subsequently rendered back to users without proper sanitization or encoding.
The technical implementation of this XSS vulnerability occurs through unknown vectors within the Yappa-NG application, suggesting that the flaw may be present in multiple input handling pathways or could be related to how the application processes specific data types or parameters. Attackers can exploit this weakness by injecting malicious web scripts or HTML code into the application's input fields, which are then executed when other users view the affected content. This type of vulnerability is particularly dangerous because it can be leveraged to steal session cookies, perform unauthorized actions on behalf of users, or redirect victims to malicious websites.
The operational impact of CVE-2005-1311 extends beyond simple script execution, as it can enable attackers to compromise user sessions and potentially gain unauthorized access to sensitive data or application functionality. When exploited successfully, this vulnerability can lead to account takeovers, data theft, and the ability to manipulate the application's behavior from the perspective of authenticated users. The attack surface is broad since XSS vulnerabilities typically affect any input field where user data is displayed without proper output encoding, making the exploitation relatively straightforward for attackers who understand web application security principles.
Organizations using affected versions of Yappa-NG should prioritize immediate patching to version 2.3.2 or later, which includes the necessary input validation and output encoding fixes. The remediation strategy should also involve implementing proper input sanitization techniques, including the use of context-specific output encoding, regular security code reviews, and comprehensive testing of all user-supplied input. Additionally, implementing a Content Security Policy (CSP) can provide an additional layer of protection against XSS attacks by restricting the sources from which scripts can be loaded and executed within the application's context. This vulnerability demonstrates the critical importance of maintaining up-to-date software versions and implementing robust security practices throughout the application development lifecycle, as outlined in the ATT&CK framework's web application security categories.