CVE-2008-4053 in PopnupBLOG
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in index.php in the Bluemoon PopnupBLOG module 3.20 and 3.30 for XOOPS allow remote attackers to inject arbitrary web script or HTML via the (1) param, (2) cat_id, and (3) view parameters.
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Analysis
by VulDB Data Team • 04/06/2025
The vulnerability identified as CVE-2008-4053 represents a critical cross-site scripting flaw within the Bluemoon PopnupBLOG module version 3.20 and 3.30 for the XOOPS content management system. This vulnerability manifests in the index.php script where multiple parameters fail to properly sanitize user input, creating persistent entry points for malicious web script injection. The affected parameters include param, cat_id, and view, which when manipulated by remote attackers can execute arbitrary HTML and JavaScript code within the context of other users' browsers.
The technical nature of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications. The flaw occurs due to insufficient input validation and output encoding mechanisms within the module's handling of user-supplied parameters. When these parameters are processed without proper sanitization, malicious payloads can be stored or executed in the victim's browser session, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the user. The vulnerability exists because the application fails to implement proper context-aware output encoding before rendering user-controllable data.
Operationally, this vulnerability presents significant risks to XOOPS installations running the affected Bluemoon PopnupBLOG module versions. Remote attackers can exploit these flaws to inject malicious scripts that persistently affect all users who view the vulnerable pages. The impact extends beyond simple script execution as attackers can leverage these XSS vectors to perform session fixation attacks, steal cookies, redirect users to malicious sites, or even modify content displayed on the website. The persistence of these vulnerabilities in widely-used CMS modules like XOOPS amplifies their potential impact across multiple web properties.
Mitigation strategies for CVE-2008-4053 should focus on immediate patching of the affected module to version 3.31 or later, which contains the necessary input validation fixes. Organizations should also implement comprehensive input sanitization measures including proper parameter validation, output encoding, and content security policies. The implementation of CSP headers can provide additional defense-in-depth against XSS attacks by restricting script execution sources. Regular security audits and vulnerability assessments should be conducted to identify similar issues in other modules and components of the XOOPS platform, ensuring that the overall security posture remains robust against evolving threats.
The ATT&CK framework categorizes this vulnerability under T1566, specifically targeting the initial access phase through malicious input. This vulnerability can enable attackers to establish persistent access through user interaction with compromised pages, potentially leading to broader compromise of the web application and underlying infrastructure. Security teams should also consider implementing web application firewalls and monitoring for suspicious parameter patterns that could indicate exploitation attempts against similar XSS vulnerabilities.