CVE-2010-4909 in PaysiteReviewCMS
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in PaysiteReviewCMS 1.1 allow remote attackers to inject arbitrary web script or HTML via the (1) q parameter to search.php or the (2) image parameter to image.php.
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Analysis
by VulDB Data Team • 10/29/2025
The vulnerability identified as CVE-2010-4909 represents a critical security flaw in PaysiteReviewCMS version 1.1, specifically manifesting as multiple cross-site scripting vulnerabilities that expose the system to remote code execution risks. This vulnerability affects two distinct input parameters within the application's codebase, creating pathways for malicious actors to inject arbitrary web scripts or HTML content into the application's response. The first vulnerable parameter is the 'q' parameter in the search.php file, while the second is the 'image' parameter in the image.php file, both of which fail to properly sanitize or validate user input before processing and rendering.
From a technical perspective, this vulnerability stems from inadequate input validation and output encoding practices within the PaysiteReviewCMS application. The flaw occurs when user-supplied data enters the application through these specific parameters without proper sanitization mechanisms. When the application processes these inputs and subsequently renders them in web responses, the malicious scripts or HTML code becomes executable within the context of other users' browsers. This creates a persistent threat vector where an attacker can craft malicious payloads that will execute whenever legitimate users interact with the vulnerable pages. The vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in software applications, and demonstrates how insufficient input validation creates opportunities for attackers to manipulate application behavior and compromise user sessions.
The operational impact of CVE-2010-4909 extends beyond simple data theft or display manipulation, as it provides attackers with the capability to perform session hijacking, deface websites, redirect users to malicious domains, or even execute more sophisticated attacks through the compromised user browsers. When an attacker successfully exploits either of the vulnerable parameters, they can potentially steal cookies, session tokens, or other sensitive information from authenticated users. The attack surface is particularly concerning because search functionality and image handling are common user interaction points, meaning that exploitation could occur through routine application usage. This vulnerability creates a persistent threat that remains active until patched, potentially allowing attackers to maintain access to compromised systems over extended periods.
Security mitigation strategies for CVE-2010-4909 must focus on implementing robust input validation and output encoding mechanisms throughout the PaysiteReviewCMS application. The recommended approach involves sanitizing all user inputs through strict validation processes that reject or escape potentially dangerous characters and patterns before processing. Organizations should implement proper HTML escaping techniques when rendering user-supplied content, ensuring that any special characters are properly encoded to prevent script execution. Additionally, the application should employ Content Security Policy (CSP) headers to add an additional layer of protection against XSS attacks. According to ATT&CK framework category T1059, which addresses command and scripting interpreter techniques, this vulnerability represents an attack vector that allows adversaries to execute malicious code through web-based interfaces. The remediation process should include updating to a patched version of PaysiteReviewCMS, implementing web application firewalls, and conducting comprehensive security testing to identify similar vulnerabilities within the application's codebase. Regular security audits and input validation reviews should become standard practices to prevent similar issues from emerging in future releases.