CVE-2022-39277 in GLPI
Summary
by MITRE • 11/03/2022
GLPI stands for Gestionnaire Libre de Parc Informatique. GLPI is a Free Asset and IT Management Software package that provides ITIL Service Desk features, licenses tracking and software auditing. External links are not properly sanitized and can therefore be used for a Cross-Site Scripting (XSS) attack. This issue has been patched, please upgrade to GLPI 10.0.4. There are currently no known workarounds.
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Analysis
by VulDB Data Team • 09/03/2025
The vulnerability identified as CVE-2022-39277 affects GLPI version 10.0.3 and earlier, representing a critical cross-site scripting flaw in the Gestionnaire Libre de Parc Informatique software. This free asset and IT management platform, designed for ITIL Service Desk features and software auditing, contains a security weakness in its input validation mechanisms that allows malicious actors to inject arbitrary web scripts into external links. The flaw specifically resides in the improper sanitization of external link parameters, which creates an avenue for attackers to execute malicious code within the context of a victim's browser session. This vulnerability impacts the software's core functionality and poses significant risks to organizations relying on GLPI for their IT asset management and service desk operations.
The technical nature of this vulnerability aligns with CWE-79, which describes cross-site scripting flaws occurring when untrusted data is improperly sanitized before being included in web pages. The flaw operates by allowing attackers to craft malicious external links that contain script payloads, which are then executed when users navigate to these links within the GLPI interface. The vulnerability is particularly concerning because it affects the software's core functionality and can be exploited without requiring elevated privileges or complex attack vectors. Attackers can leverage this weakness to perform session hijacking, steal sensitive information, or redirect users to malicious websites. The vulnerability exists in the application's output encoding and input validation logic, where external link parameters are not properly sanitized before being rendered in the user interface.
The operational impact of CVE-2022-39277 extends beyond simple script execution, as it can lead to comprehensive compromise of the GLPI environment and associated data. Organizations using affected versions face risks including unauthorized access to IT asset records, service desk tickets, and license tracking information. The vulnerability can enable attackers to escalate privileges within the application context, potentially gaining access to sensitive organizational data and system configurations. Additionally, the flaw may facilitate more sophisticated attacks such as credential theft through session manipulation or the deployment of additional malware through browser-based exploitation. The impact is particularly severe in enterprise environments where GLPI serves as a central repository for critical IT infrastructure information and service management processes.
Mitigation strategies for this vulnerability primarily involve immediate upgrading to GLPI version 10.0.4, which contains the necessary patches to address the XSS flaw. Organizations should implement comprehensive patch management procedures to ensure all instances of GLPI are updated promptly. Security teams should also consider implementing additional protective measures such as web application firewalls and input validation rules to monitor for suspicious external link parameters. The vulnerability's classification under ATT&CK technique T1566.001 highlights the importance of network monitoring and user behavior analysis to detect potential exploitation attempts. Organizations should conduct thorough security assessments of their GLPI installations and review access controls to minimize potential impact from any successful exploitation attempts. The patch addresses the root cause by implementing proper input sanitization and output encoding mechanisms that prevent malicious script execution in external link contexts.