CVE-2026-92805 in Community Skeleton
Summary
by MITRE • 09/16/2026
UVdesk Community Skeleton through 1.1.8 fails to authenticate or validate installation state on wizard endpoints in ConfigureHelpdesk controller actions. Unauthenticated attackers can repoint the database and create super administrator accounts by submitting crafted requests to wizard endpoints, gaining full control of the instance.
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Analysis
by VulDB Data Team • 09/17/2026
The vulnerability identified in UVdesk Community Skeleton versions up through 1.1.8 represents a critical failure in access control logic within the application's installation wizard functionality. Specifically, the ConfigureHelpdesk controller actions responsible for handling initial setup and configuration steps do not properly verify whether an instance has already been installed or validate the authentication state of the user initiating these requests. This architectural flaw allows unauthenticated actors to interact with endpoints that are intended only for first-time setup procedures, effectively bypassing standard security boundaries designed to protect administrative functions from unauthorized access.
From a technical perspective, the core issue lies in the absence of checks regarding installation status and session validity before processing configuration data. When an attacker submits crafted HTTP requests to these wizard endpoints, the application fails to distinguish between a legitimate administrator performing initial setup and an external actor attempting to manipulate system parameters. Consequently, attackers can repoint the database connection settings to arbitrary targets or inject malicious credentials directly into the administrative account structure. This capability enables the creation of new super administrator accounts with full privileges, granting the attacker complete control over the UVdesk instance without requiring any prior authentication credentials.
The operational impact of this vulnerability is severe, as it leads to a total compromise of the affected system. By gaining super administrator access, an attacker can exfiltrate sensitive customer data stored within the help desk platform, modify or delete critical configurations, and potentially use the compromised server as a pivot point for further attacks against internal networks. Since UVdesk instances often handle support tickets containing personally identifiable information and confidential business communications, this breach also carries significant implications for data privacy compliance and organizational reputation. The ability to alter database connections additionally poses risks of SQL injection or data poisoning if not properly sanitized by downstream processes.
This vulnerability aligns with CWE-287 Improper Authentication and CWE-613 Insufficient Session Expiration, as the system fails to enforce proper identity verification for privileged operations. In terms of attack vectors, it corresponds to MITRE ATT&CK technique T1078 Valid Accounts, where attackers leverage or create legitimate credentials to maintain persistent access. The exploitation path typically involves sending specific POST requests with manipulated parameters to the wizard endpoints, exploiting the lack of state validation in the ConfigureHelpdesk logic.
Mitigation strategies should prioritize immediate patching to version 1.1.9 or later, which addresses these authentication and installation state checks. In environments where upgrading is not immediately feasible, network-level controls such as web application firewalls can be configured to block requests targeting known wizard endpoints from untrusted IP ranges. Additionally, administrators should review database connection configurations for any unauthorized changes and rotate all administrative credentials if a compromise is suspected. Regular security audits of controller logic are recommended to ensure that installation or setup wizards remain inaccessible once the initial configuration phase is complete, thereby preventing post-installation exploitation attempts.