CVE-2026-44227 in Best Practical
Summary
by MITRE • 07/20/2026
RT is an open source, enterprise-grade issue and ticket tracking system. Versions 6.0.0 and above, prior to 6.0.3 contain a reflected Cross-Site Scripting (XSS) vulnerability. An attacker who can induce an authenticated RT user to visit a crafted URL can execute arbitrary JavaScript in that user's browser session. There are no effective workarounds. Avoid following untrusted RT URLs. This issue has been fixed in version 6.0.3.
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Analysis
by VulDB Data Team • 07/20/2026
The RT (Request Tracker) system represents a critical vulnerability in its web interface through a reflected cross-site scripting flaw that affects versions 6.0.0 through 6.0.2. This vulnerability operates under the Common Weakness Enumeration classification of CWE-79 which specifically addresses insecure direct object references and reflects the broader category of web application security flaws that enable malicious code execution. The flaw manifests when authenticated users encounter crafted URLs containing malicious script payloads that get reflected back through the application's response, bypassing normal input validation mechanisms.
The technical implementation of this vulnerability exploits the application's failure to properly sanitize user-supplied input within URL parameters before rendering them in web responses. When an authenticated user visits a maliciously constructed URL containing JavaScript code within query parameters, the RT system reflects this content directly into the HTML response without appropriate encoding or sanitization. This creates an environment where attackers can inject arbitrary scripts that execute within the victim's browser context, leveraging the authenticated session to perform actions with the victim's privileges.
The operational impact of this vulnerability extends beyond simple script execution, as it fundamentally compromises user sessions and enables a range of malicious activities through the ATT&CK framework's credential access and execution techniques. An attacker could potentially steal session cookies, modify user permissions, access sensitive tickets and data, or redirect users to phishing sites. The vulnerability affects all authenticated users within the RT system, creating a significant risk for enterprise environments where ticket tracking systems contain sensitive business information and user credentials.
Mitigation strategies for this reflected XSS vulnerability require immediate patching to version 6.0.3 or later, as no effective workarounds exist that can prevent script execution in the victim's browser. Organizations should implement comprehensive URL filtering mechanisms and web application firewalls to detect and block malicious URLs before they reach authenticated users. Security teams must also conduct thorough user education regarding the dangers of clicking untrusted links and establish protocols for verifying URL legitimacy before navigation. The vulnerability demonstrates the critical importance of input validation and output encoding in web applications, with proper sanitization of all user-supplied data being essential to preventing such reflected XSS attacks that can escalate to full session compromise and unauthorized system access.