CVE-2022-35194 in TestLink
Summary
by MITRE • 09/17/2022
TestLink v1.9.20 was discovered to contain a stored cross-site scripting (XSS) vulnerability via /lib/inventory/inventoryView.php.
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Analysis
by VulDB Data Team • 10/19/2022
The vulnerability identified as CVE-2022-35194 affects TestLink version 1.9.20 and represents a critical stored cross-site scripting flaw that resides within the inventoryView.php component of the application's inventory library. This vulnerability allows attackers to inject malicious scripts into the application's inventory viewing functionality, which then gets executed whenever authorized users access the affected page. The stored nature of this XSS vulnerability means that the malicious payload persists in the application's database and affects all users who view the compromised inventory items, making it particularly dangerous for collaborative environments where multiple users interact with shared data. The vulnerability specifically manifests in the /lib/inventory/inventoryView.php file, indicating that the application fails to properly sanitize or escape user-supplied input before rendering it in the web interface.
The technical exploitation of this vulnerability occurs when an attacker submits malicious script code through input fields that are subsequently stored in the application's database and displayed in the inventory viewing interface. When legitimate users navigate to the inventory view page, their browsers execute the stored malicious scripts, potentially leading to session hijacking, credential theft, or redirection to malicious sites. This type of vulnerability falls under CWE-79 which categorizes cross-site scripting flaws as weaknesses in input validation and output encoding. The attack vector is particularly concerning because it requires minimal user interaction beyond viewing the compromised inventory data, making it a stealthy method for attackers to compromise user sessions and access sensitive information within the TestLink environment.
The operational impact of CVE-2022-35194 extends beyond simple script execution, as it can enable attackers to establish persistent access to the TestLink environment through session manipulation and credential theft. Given that TestLink is primarily used for test management and quality assurance in software development environments, compromised access could lead to unauthorized modification of test cases, manipulation of test results, or access to sensitive project information. The vulnerability affects the application's integrity and confidentiality, potentially allowing attackers to disrupt testing processes, compromise test data, or gain access to other systems through the compromised TestLink instance. Organizations using this version of TestLink face significant risk of unauthorized access and data compromise, particularly in environments where the application handles sensitive project data or integrates with other development tools.
Mitigation strategies for CVE-2022-35194 should prioritize immediate patching of the TestLink application to version 1.9.21 or later, which contains the necessary fixes for the stored XSS vulnerability. Until patching is complete, organizations should implement input validation and output encoding measures at the application level, ensuring that all user-supplied data is properly sanitized before being stored or displayed. Network-level protections such as web application firewalls can provide additional defense-in-depth measures, though they should not be relied upon as the sole mitigation. Security teams should also conduct thorough audits of the TestLink environment to identify any potential exploitation that may have occurred prior to patching, while implementing monitoring for suspicious activities in the inventory management functionality. The vulnerability aligns with ATT&CK technique T1566.001 which covers phishing with malicious attachments, as attackers may use this vulnerability to establish initial access through compromised inventory data or user interactions with maliciously crafted test cases. Regular security assessments and vulnerability scanning should be implemented to prevent similar issues in other components of the TestLink application and surrounding systems.