CVE-2006-5292 in Exhibit Engine
Summary
by MITRE
PHP remote file inclusion vulnerability in photo_comment.php in Exhibit Engine 1.5 RC 4 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the toroot parameter.
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Analysis
by VulDB Data Team • 04/24/2026
The vulnerability identified as CVE-2006-5292 represents a critical remote file inclusion flaw in Exhibit Engine version 1.5 RC 4 and earlier, specifically within the photo_comment.php script. This vulnerability falls under the category of insecure direct object reference and remote code execution issues, with direct implications for web application security. The flaw manifests when the application fails to properly validate or sanitize user input passed through the toroot parameter, creating an avenue for malicious actors to inject and execute arbitrary PHP code on the target server.
The technical implementation of this vulnerability stems from the application's improper handling of the toroot parameter which is used to determine the root directory for photo comments. When an attacker supplies a malicious URL as the value for this parameter, the application attempts to include and execute the remote file without adequate validation. This behavior directly violates secure coding practices and represents a classic example of a remote file inclusion vulnerability that allows attackers to execute code on the server. The vulnerability is particularly dangerous because it enables full remote code execution capabilities, allowing attackers to potentially gain complete control over the affected system.
From an operational perspective, this vulnerability creates significant risk for organizations using Exhibit Engine 1.5 RC 4 or earlier versions. The impact extends beyond simple data theft to encompass complete system compromise, data manipulation, and potential lateral movement within network environments. Attackers can leverage this vulnerability to upload backdoors, establish persistent access, and perform reconnaissance activities. The vulnerability also aligns with several ATT&CK techniques including T1190 for exploit public-facing application and T1059 for command and scripting interpreter, making it a prime target for automated exploitation tools and advanced persistent threats. Organizations may face regulatory compliance issues and potential legal ramifications if such vulnerabilities are exploited successfully.
Mitigation strategies for CVE-2006-5292 should focus on immediate remediation through patching the affected Exhibit Engine versions to the latest stable release. The underlying fix involves implementing proper input validation and sanitization for all user-supplied parameters, particularly those used in file inclusion operations. Organizations should also implement web application firewalls to detect and block malicious requests containing suspicious URL patterns. The vulnerability demonstrates the importance of following secure coding guidelines and adheres to CWE-98 principles regarding improper validation of filename parameters. Additionally, network segmentation and least privilege access controls should be implemented to limit potential damage from successful exploitation attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other applications and systems within the organization's infrastructure.