CVE-2005-3797 in Template Seller
Summary
by MITRE
PHP remote file inclusion vulnerability in payment_paypal.php in AlstraSoft Template Seller Pro 3.25 allows remote attackers to execute arbitrary PHP code via the config[basepath] parameter.
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Analysis
by VulDB Data Team • 03/15/2025
The vulnerability identified as CVE-2005-3797 represents a critical remote file inclusion flaw in AlstraSoft Template Seller Pro version 3.25, specifically within the payment_paypal.php script. This vulnerability stems from improper input validation and sanitization mechanisms that fail to adequately restrict user-supplied data from being directly incorporated into file inclusion operations. The affected parameter config[basepath] serves as the primary attack vector, allowing malicious actors to manipulate the application's file inclusion behavior and potentially execute arbitrary code on the target system.
This vulnerability aligns with CWE-88, which describes improper neutralization of special elements used in an expression, and CWE-94, covering improper control of generation of code. The flaw operates at the intersection of input validation failures and code execution vulnerabilities, creating a pathway for remote code execution through the manipulation of file inclusion parameters. The vulnerability falls under the ATT&CK technique T1190, which involves exploiting weaknesses in remote services to gain unauthorized access and execute malicious code.
The technical exploitation of this vulnerability requires an attacker to craft a malicious payload that can be passed through the config[basepath] parameter, typically by leveraging a remote file inclusion mechanism. When the application processes this parameter without proper validation, it can be tricked into including and executing malicious PHP code from a remote server controlled by the attacker. This creates a persistent threat vector that can lead to complete system compromise, data exfiltration, and potential lateral movement within the network infrastructure.
The operational impact of CVE-2005-3797 extends beyond immediate code execution capabilities, as it provides attackers with the foundation for more sophisticated attacks including backdoor installation, privilege escalation, and data theft. The vulnerability's remote nature means that exploitation can occur from any location with internet access, making it particularly dangerous for web applications that are publicly accessible. Organizations running affected versions of AlstraSoft Template Seller Pro face significant risk of unauthorized access and system compromise, with potential impacts ranging from service disruption to complete infrastructure takeover.
Mitigation strategies for this vulnerability should prioritize immediate patching of the affected software to address the root cause of the improper input validation. Organizations must implement proper parameter validation and sanitization measures to prevent user-supplied data from being used in file inclusion operations. Additionally, network-level defenses including firewall rules, web application firewalls, and intrusion detection systems should be configured to monitor and block suspicious file inclusion patterns. The implementation of least privilege principles and regular security assessments can help reduce the potential impact of such vulnerabilities. Organizations should also consider implementing input validation frameworks and secure coding practices that align with industry standards including OWASP Top Ten and NIST cybersecurity guidelines to prevent similar vulnerabilities in future development cycles.