CVE-2009-4253 in Pphlogger
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in dspStats.php in PowerPhlogger 2.2.5 allows remote attackers to inject arbitrary web script or HTML via the edit parameter.
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Analysis
by VulDB Data Team • 08/08/2025
The vulnerability identified as CVE-2009-4253 represents a critical cross-site scripting flaw in PowerPhlogger version 2.2.5, specifically within the dspStats.php component. This weakness enables remote attackers to execute malicious web scripts or HTML code through manipulation of the edit parameter, fundamentally compromising the application's security posture and user trust. The vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a persistent and widespread issue in web applications. The flaw demonstrates a classic input validation failure where user-supplied data is not properly sanitized before being rendered in web pages, creating an avenue for attackers to inject malicious payloads that can persist and execute in the context of other users' browsers.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing script code within the edit parameter of the dspStats.php endpoint. When a victim accesses this crafted URL, the application fails to validate or escape the input data, allowing the injected script to execute in the victim's browser session. This creates a persistent threat where any user who visits the affected page becomes a potential victim of the malicious code execution, which can range from simple cookie theft to more sophisticated attacks such as session hijacking or redirection to malicious sites. The vulnerability's impact extends beyond immediate script execution as it can be leveraged to manipulate application behavior, steal sensitive user information, and potentially establish backdoors within the targeted environment. The weakness is particularly concerning because it operates at the application layer, affecting the web interface directly and bypassing traditional network security controls.
From an operational perspective, this vulnerability poses significant risks to organizations using PowerPhlogger 2.2.5 for web analytics and statistics tracking. The attack surface is broad as any user who interacts with the application's statistical reporting features could become a victim, potentially affecting both administrators and regular users. The impact includes unauthorized data access, session manipulation, and potential escalation to more severe security incidents. The vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious links, and T1059.001 for command and control through script injection. Organizations may experience reputational damage, regulatory compliance issues, and potential legal consequences if user data is compromised through such attacks. The persistent nature of the vulnerability means that once exploited, the malicious code can continue to affect users until the underlying flaw is patched and the application is properly updated.
Mitigation strategies for CVE-2009-4253 require immediate implementation of input validation and output encoding measures. The primary remediation involves sanitizing all user inputs through proper escaping and validation before processing or rendering them in web pages, specifically addressing the edit parameter in dspStats.php. Organizations should implement Content Security Policy (CSP) headers to restrict script execution and prevent unauthorized code injection. The recommended solution includes upgrading to a patched version of PowerPhlogger, as the vulnerability was addressed in subsequent releases. Additionally, implementing web application firewalls, conducting regular security code reviews, and establishing proper input validation routines can help prevent similar issues. Security teams should also monitor for exploitation attempts and maintain up-to-date threat intelligence to identify potential attacks targeting this specific vulnerability. Regular vulnerability assessments and penetration testing should be conducted to ensure that similar input validation flaws are not present in other components of the application stack, aligning with industry best practices for secure software development lifecycle implementation.