CVE-2005-3334 in Flyspray
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in index.php in Flyspray 0.9.7 through 0.9.8 (devel) allows remote attackers to inject arbitrary web script or HTML via the (1) PHPSESSID, (2) task, (3) string, (4) type, (5) serv, (6) due, (7) dev, and (8) sort2 parameters.
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Analysis
by VulDB Data Team • 07/08/2025
The CVE-2005-3334 vulnerability represents a critical cross-site scripting flaw discovered in the Flyspray issue tracking system version 0.9.7 through 0.9.8 development releases. This vulnerability resides within the index.php script and demonstrates a fundamental failure in input validation and output sanitization mechanisms that directly enables malicious actors to execute arbitrary web scripts or HTML code within the context of affected user sessions. The vulnerability affects multiple parameters including PHPSESSID, task, string, type, serv, due, dev, and sort2, indicating a systemic issue in how the application processes user-supplied data without proper sanitization measures.
This vulnerability operates at the intersection of CWE-79, which specifically addresses Cross-Site Scripting flaws, and represents a classic example of insecure input handling where user-provided data flows directly into web page output without adequate encoding or filtering. The attack vector is particularly concerning as it allows remote code execution through web-based attacks, enabling threat actors to inject malicious scripts that can steal session cookies, redirect users to malicious sites, or perform unauthorized actions on behalf of legitimate users. The vulnerability's impact is amplified by the fact that it affects parameters commonly used in web applications, making it highly exploitable across various user interactions within the Flyspray interface.
The operational implications of this vulnerability extend beyond simple script injection, as it creates persistent security risks for organizations relying on Flyspray for issue tracking and project management. When exploited, the XSS vulnerability can lead to session hijacking attacks where attackers steal PHPSESSID cookies to impersonate legitimate users, potentially gaining administrative privileges within the issue tracking system. The vulnerability affects all parameters mentioned in the CVE description, suggesting that the application's input validation is entirely bypassed across multiple data entry points, creating a comprehensive attack surface that undermines the security posture of the entire system.
Organizations utilizing affected versions of Flyspray should immediately implement mitigations including input validation, output encoding, and the implementation of Content Security Policies to prevent script execution. The vulnerability demonstrates the critical importance of proper input sanitization and output encoding practices as outlined in OWASP Top Ten and NIST cybersecurity guidelines. Additionally, implementing proper parameter validation and sanitization measures would address the root cause of this vulnerability, while also aligning with ATT&CK framework techniques related to credential access and execution through web-based attacks. Regular security updates and patch management procedures should be enforced to prevent similar vulnerabilities from persisting in production environments, as this flaw represents a preventable security oversight that directly impacts user trust and system integrity.