CVE-2006-5102 in Newswriter
Summary
by MITRE
PHP remote file inclusion vulnerability in include/editfunc.inc.php in Sebastian Baumann and Philipp Wolfer Newswriter SW 1.42 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the NWCONF_SYSTEM[server_path] parameter.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 04/23/2026
The vulnerability described in CVE-2006-5102 represents a critical remote file inclusion flaw in the Newswriter SW 1.42 and earlier versions, specifically within the include/editfunc.inc.php file. This vulnerability stems from improper input validation and sanitization of user-supplied data, creating a pathway for remote attackers to execute arbitrary PHP code on the target system. The flaw manifests when the application fails to properly validate the NWCONF_SYSTEM[server_path] parameter, allowing malicious actors to inject URLs that point to remote malicious files.
The technical implementation of this vulnerability falls under CWE-88, which describes improper neutralization of special elements used in an expression, specifically in the context of command and URL injection. The vulnerability operates by leveraging the PHP include function to load and execute code from remote locations, bypassing normal access controls and security boundaries. When an attacker supplies a malicious URL through the vulnerable parameter, the application's code execution flow is manipulated to include and execute the remote file, effectively granting the attacker remote code execution capabilities.
This vulnerability has significant operational impact as it allows attackers to gain complete control over the affected system. The remote code execution capability enables threat actors to install backdoors, exfiltrate data, modify content, or use the compromised server as a launchpad for further attacks within the network. The vulnerability affects the integrity and confidentiality of the application, as attackers can manipulate the system to serve malicious content or access sensitive information stored within the Newswriter application. The attack vector is particularly dangerous because it requires minimal user interaction and can be exploited through web-based interfaces.
The mitigation strategy for this vulnerability involves implementing strict input validation and sanitization of all user-supplied parameters, particularly those used in include statements. Organizations should upgrade to patched versions of Newswriter software where available, as this vulnerability was addressed in later releases. Additionally, disabling remote file inclusion in PHP configurations through the use of allow_url_include=Off directive can prevent exploitation of similar vulnerabilities. Network-level protections such as web application firewalls and intrusion detection systems can help detect and block malicious requests attempting to exploit this vulnerability. The implementation of secure coding practices, including parameterized queries and input validation, aligns with the principles outlined in the OWASP Top Ten and helps prevent similar issues in future development cycles. The ATT&CK framework categorizes this vulnerability under T1190 - Exploit Public-Facing Application, highlighting the importance of proper application hardening and patch management in preventing such attacks.