CVE-2023-33002 in TestComplete Support Plugin
Summary
by MITRE • 05/16/2023
Jenkins TestComplete support Plugin 2.8.1 and earlier does not escape the TestComplete project name, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.
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Analysis
by VulDB Data Team • 04/26/2025
The vulnerability identified as CVE-2023-33002 affects the Jenkins TestComplete support plugin version 2.8.1 and earlier, representing a critical security flaw that enables stored cross-site scripting attacks. This issue stems from inadequate input sanitization within the plugin's handling of TestComplete project names, creating a persistent XSS vector that can be exploited by malicious actors with minimal privileges. The vulnerability specifically targets the plugin's user interface components where project names are displayed without proper HTML escaping mechanisms, allowing attackers to inject malicious scripts that execute in the context of other users' browsers.
The technical exploitation of this vulnerability requires an attacker to possess the Item/Configure permission within Jenkins, which is a relatively low privilege level that many users may legitimately hold. This permission allows the attacker to modify project configurations and inject malicious content into the TestComplete project name field. When other users view the affected project page or interact with the plugin interface, their browsers execute the stored malicious JavaScript code, potentially enabling session hijacking, credential theft, or arbitrary code execution on victim systems. The stored nature of this XSS vulnerability means that the malicious payload persists in the system until manually removed, making it particularly dangerous for long-term exploitation.
This vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws, and represents a classic case of inadequate output escaping in web applications. The ATT&CK framework categorizes this as a technique for code injection and privilege escalation, as it allows attackers to leverage existing permissions to execute malicious code in the context of other users. The impact extends beyond simple data theft, as successful exploitation could enable attackers to manipulate Jenkins build configurations, access sensitive project information, or potentially gain deeper system access through the compromised user sessions.
Organizations using Jenkins with the affected TestComplete plugin should immediately upgrade to version 2.8.2 or later, which implements proper input sanitization and output escaping mechanisms for project names. Administrators should also conduct comprehensive security audits of all installed plugins to identify similar vulnerabilities, particularly those handling user-provided data in web interfaces. Additional mitigations include implementing strict input validation policies, enabling security headers such as Content Security Policy, and regularly reviewing user permissions to ensure the principle of least privilege is maintained. The vulnerability demonstrates the critical importance of proper input sanitization in web applications and the potential for seemingly minor oversights to create significant security risks in enterprise CI/CD environments.