CVE-2007-5915 in phphelpdesk
Summary
by MITRE
Directory traversal vulnerability in index.php in phphelpdesk 0.6.16 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the whattodo parameter.
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Analysis
by VulDB Data Team • 11/09/2025
The vulnerability identified as CVE-2007-5915 represents a critical directory traversal flaw within the phphelpdesk 0.6.16 web application. This security weakness resides in the index.php script where user input is improperly validated and processed, creating an avenue for remote attackers to manipulate file inclusion mechanisms. The vulnerability specifically manifests when the whattodo parameter receives input containing .. (dot dot) sequences that should be restricted but are instead accepted and processed without adequate sanitization.
This directory traversal vulnerability falls under the CWE-22 category known as "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", which is a fundamental weakness in input validation that allows attackers to access files outside the intended directory structure. The flaw enables attackers to traverse the file system hierarchy by using directory navigation sequences such as ../ or ..\, potentially gaining access to sensitive system files, configuration data, or executable code that should remain protected from unauthorized access.
The operational impact of this vulnerability is severe as it provides remote attackers with the capability to include and execute arbitrary local files on the target system. An attacker could leverage this flaw to access system configuration files, database credentials, application source code, or even system binaries that could be executed with the privileges of the web server process. This access could lead to complete system compromise, data exfiltration, or further lateral movement within the network infrastructure. The vulnerability essentially transforms a legitimate web application function into a vector for arbitrary code execution, making it particularly dangerous in production environments.
Mitigation strategies for CVE-2007-5915 should focus on implementing proper input validation and sanitization mechanisms. The most effective approach involves implementing a whitelist-based validation system that explicitly defines acceptable values for the whattodo parameter, rejecting any input containing directory traversal sequences or special characters. Additionally, developers should employ secure coding practices that prevent user-supplied input from directly influencing file system operations. The application should be configured to run with minimal required privileges and implement proper access controls to limit the damage that could occur even if the vulnerability is exploited. Organizations should also consider implementing web application firewalls and intrusion detection systems to monitor for suspicious patterns of directory traversal attempts. The vulnerability aligns with attack techniques documented in the ATT&CK framework under T1059 (Command and Scripting Interpreter) and T1566 (Phishing) as attackers may use such vulnerabilities to establish persistent access or escalate privileges within compromised systems. Regular security updates and patch management processes are essential to prevent exploitation of known vulnerabilities like this one that has been documented for over a decade.