CVE-2007-5954 in JLMForo System
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in buscador.php in JLMForo System allows remote attackers to inject arbitrary web script or HTML via the clave parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 09/17/2025
The CVE-2007-5954 vulnerability represents a classic cross-site scripting flaw within the JLMForo System's buscador.php component, demonstrating a fundamental weakness in input validation and output sanitization practices that persisted in web applications during the mid-2000s era. This vulnerability specifically targets the clave parameter, which serves as a search query input field within the forum system's search functionality, creating a pathway for malicious actors to inject arbitrary web scripts or HTML content directly into the application's response stream.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious payload containing script tags or other HTML elements and submits this through the clave parameter in the buscador.php script. The application fails to properly sanitize or escape the user-supplied input before rendering it back to the victim's browser, allowing the injected code to execute within the context of the victim's session. This creates a persistent threat vector where attackers can perform actions such as stealing session cookies, redirecting users to malicious sites, or defacing the forum interface with malicious content.
From an operational impact perspective, this vulnerability exposes the JLMForo System to significant security risks including session hijacking, data theft, and potential full system compromise through user impersonation. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and represents a clear violation of secure coding practices that should have been addressed through proper input validation and output encoding mechanisms. The attack surface is particularly concerning as it affects the core search functionality of a forum system, potentially impacting all users who interact with the search feature.
The threat landscape for this vulnerability demonstrates how easily such flaws can be exploited by attackers with minimal technical expertise, as the XSS vector is well-documented and commonly used in web application attacks. This aligns with ATT&CK technique T1566 which covers social engineering attacks through malicious content delivery, where the vulnerable forum system becomes a vector for delivering malicious scripts to unsuspecting users. The vulnerability also intersects with T1071 which addresses application layer protocols and can be leveraged for more sophisticated attack chains including credential theft or privilege escalation within the forum environment.
Mitigation strategies for this vulnerability should include immediate implementation of proper input validation and output encoding mechanisms, specifically applying HTML entity encoding to all user-supplied data before rendering it in web responses. The system should implement a comprehensive sanitization framework that filters out or escapes potentially dangerous characters and script tags from all input parameters. Additionally, organizations should deploy web application firewalls and implement Content Security Policy headers to provide additional defense-in-depth measures. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other components of the system, ensuring that the application follows modern secure coding standards and practices that prevent such injection vulnerabilities from occurring in the first place.