CVE-2006-5630 in Hosting Controller
Summary
by MITRE
Hosting Controller 6.1 before Hotfix 3.3 allows remote attackers to (1) delete the virtual directory of an arbitrary site via a modified ForumID parameter in a disableforum action in DisableForum.asp and (2) create an arbitrary forum virtual directory via an empty ForumID parameter in an enableforum action in EnableForum.asp.
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Analysis
by VulDB Data Team • 04/26/2026
The vulnerability identified as CVE-2006-5630 affects Hosting Controller 6.1 versions prior to Hotfix 3.3 and represents a critical authorization and input validation flaw that enables remote attackers to manipulate virtual directory configurations within the hosting environment. This issue stems from insufficient parameter validation and inadequate access controls within the administrative web interface components of the hosting controller software, specifically impacting the DisableForum.asp and EnableForum.asp scripts that manage forum virtual directory operations.
The technical implementation of this vulnerability exploits weak input sanitization mechanisms in the ForumID parameter handling within the hosting controller's administrative interface. When attackers manipulate the ForumID parameter in the disableforum action within DisableForum.asp, they can specify arbitrary site identifiers to target for virtual directory deletion, effectively allowing unauthorized removal of forum directories across hosted websites. Similarly, the enableforum action in EnableForum.asp accepts empty ForumID parameters that permit attackers to create new virtual directories with arbitrary configurations, bypassing normal administrative controls and potentially enabling malicious content deployment or privilege escalation within the hosting environment.
The operational impact of this vulnerability extends beyond simple directory manipulation, as it provides attackers with the capability to compromise multiple hosted sites simultaneously through a single attack vector. The vulnerability enables attackers to delete critical forum directories that may contain user-generated content, application data, or configuration files essential to website functionality. Additionally, the ability to create arbitrary forum virtual directories allows for potential malicious deployment of web shells, phishing content, or other harmful materials that could compromise the entire hosting infrastructure and affect multiple customers within the same hosting environment.
This vulnerability maps to CWE-20, which describes improper input validation, and CWE-284, addressing improper access control mechanisms, while also aligning with ATT&CK techniques related to privilege escalation and persistence through web application manipulation. The attack surface is particularly concerning given that the vulnerability operates at the administrative interface level, potentially allowing attackers to gain unauthorized control over virtual directory configurations without proper authentication or authorization. Organizations should implement immediate mitigations including applying the available Hotfix 3.3 patch, implementing proper input validation for all administrative parameters, and establishing network segmentation controls to limit access to administrative interfaces.
The root cause of this vulnerability demonstrates a fundamental flaw in the hosting controller's security architecture where parameter validation occurs too late in the processing cycle and access controls are insufficiently enforced. This allows attackers to manipulate the application's intended behavior through parameter manipulation, effectively bypassing the normal authorization checks that should prevent unauthorized administrative actions. The vulnerability underscores the importance of defense in depth strategies, particularly in web application security where input validation and access control must be implemented at multiple layers to prevent exploitation.
Organizations should prioritize immediate patching of affected systems and implement comprehensive monitoring for suspicious administrative activities, particularly around virtual directory creation and deletion events. The vulnerability's remote exploitability means that attackers can target affected systems from anywhere on the internet without requiring local access or prior authentication. Security teams should also consider implementing web application firewalls to detect and block suspicious parameter manipulations, while establishing proper logging and alerting mechanisms to detect unauthorized administrative activities within hosting environments. The impact of this vulnerability extends beyond individual system compromise to potentially affect entire hosting networks and customer data integrity across multiple websites.