CVE-2005-4477 in papaya
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in papaya CMS 4.0.4 and earlier allows remote attackers to inject arbitrary web script or HTML via the bab[searchfor] parameter.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 09/10/2025
The CVE-2005-4477 vulnerability represents a critical cross-site scripting flaw discovered in papaya CMS versions 4.0.4 and earlier, exposing web applications to persistent security risks. This vulnerability specifically targets the bab[searchfor] parameter within the content management system, creating a pathway for malicious actors to execute unauthorized code within the context of user sessions. The flaw resides in the application's insufficient input validation mechanisms, which fail to properly sanitize user-supplied data before incorporating it into dynamic web page content. This oversight allows attackers to craft malicious payloads that can be executed when other users view the affected pages, potentially leading to session hijacking, credential theft, or unauthorized data manipulation.
The technical exploitation of this vulnerability follows a classic XSS attack pattern where malicious input is injected through the bab[searchfor] parameter and subsequently rendered in the web application's output without proper sanitization. When users browse pages containing the injected script, the malicious code executes in their browser context, potentially accessing session cookies, redirecting users to malicious sites, or performing actions on behalf of authenticated users. This vulnerability aligns with CWE-79 which categorizes cross-site scripting as a weakness in input validation and output encoding, specifically addressing the failure to properly encode output to prevent script execution in web browsers. The attack vector demonstrates how improper handling of user input can create persistent security weaknesses that affect multiple users within the application's ecosystem.
The operational impact of CVE-2005-4477 extends beyond simple script injection, as it can enable sophisticated attacks that compromise the entire web application infrastructure. An attacker could leverage this vulnerability to steal user sessions, modify content, redirect traffic to phishing sites, or even escalate privileges within the CMS environment. The widespread use of papaya CMS in content management systems made this vulnerability particularly dangerous as it could affect numerous websites simultaneously. Organizations running affected versions faced potential data breaches, reputation damage, and compliance violations, especially in regulated environments where user data protection is mandatory. This vulnerability also demonstrates how legacy CMS systems often contain unpatched security flaws that can remain undetected for extended periods, creating persistent attack surfaces for threat actors.
Mitigation strategies for CVE-2005-4477 require immediate implementation of proper input validation and output encoding mechanisms within the papaya CMS framework. Organizations should implement comprehensive parameter sanitization for all user inputs, particularly those used in dynamic content generation, and ensure that all output is properly encoded before rendering in web pages. The recommended approach includes applying the vendor-provided security patches or upgrading to supported versions of papaya CMS that address this vulnerability. Additionally, implementing content security policies, using proper input validation libraries, and conducting regular security assessments can help prevent similar vulnerabilities from emerging in the future. From an ATT&CK framework perspective, this vulnerability maps to T1059.007 for script execution and T1566 for social engineering techniques that could be employed in conjunction with XSS attacks. Organizations should also consider implementing web application firewalls and monitoring systems to detect and prevent exploitation attempts, while maintaining regular security updates and vulnerability assessments to protect against similar threats in other components of their web infrastructure.