CVE-2013-3262 in Download Monitor
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in admin/admin.php in the Download Monitor plugin before 3.3.6.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the p parameter.
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Analysis
by VulDB Data Team • 01/04/2022
The CVE-2013-3262 vulnerability represents a critical cross-site scripting flaw within the Download Monitor WordPress plugin, specifically affecting versions prior to 3.3.6.2. This vulnerability resides in the administrative interface file admin/admin.php and exposes WordPress sites to significant security risks through improper input validation and output sanitization. The flaw manifests when the plugin processes the 'p' parameter without adequate sanitization, creating an avenue for malicious actors to execute arbitrary web scripts or HTML code within the context of authenticated admin sessions.
The technical nature of this vulnerability aligns with CWE-79, which describes Cross-Site Scripting flaws where untrusted data is incorporated into web page content without proper validation or encoding. The vulnerability operates by allowing attackers to inject malicious payloads through the p parameter, which is then rendered in the admin interface without appropriate sanitization measures. This creates a persistent XSS vector that can be exploited against administrators who view the affected page, potentially leading to complete compromise of the WordPress installation.
From an operational impact perspective, this vulnerability presents a severe threat to WordPress site security as it enables attackers to execute malicious scripts in the context of admin sessions. Successful exploitation could allow threat actors to steal administrative credentials, modify content, install malware, or perform other malicious activities within the compromised WordPress environment. The vulnerability is particularly dangerous because it targets the administrative interface, meaning that any successful XSS attack could result in full administrative control over the affected site. This makes it a prime target for attackers seeking persistent access to WordPress installations.
The attack surface for this vulnerability is relatively narrow but impactful, as it requires access to the plugin's administrative interface and the ability to inject malicious payloads through the specific p parameter. However, the consequences are severe enough that any WordPress site running vulnerable versions of the Download Monitor plugin should be considered at risk. The vulnerability demonstrates the importance of proper input validation and output encoding practices in web applications, particularly in administrative interfaces where elevated privileges are involved. Organizations should implement immediate patching procedures and consider network-level protections such as web application firewalls to mitigate potential exploitation attempts.
Mitigation strategies for this vulnerability include immediate upgrade to Download Monitor version 3.3.6.2 or later, which addresses the input sanitization issues. Administrators should also implement proper security monitoring to detect unusual activity patterns that might indicate exploitation attempts. Additionally, organizations should enforce principle of least privilege for admin accounts, implement multi-factor authentication, and regularly audit plugin installations to ensure all components remain up-to-date. The vulnerability highlights the importance of maintaining current security patches and following secure coding practices that prevent XSS attacks through proper parameter validation and output encoding techniques.
The exploitation of this vulnerability demonstrates the broader threat landscape facing WordPress ecosystems, where plugin vulnerabilities often serve as initial compromise vectors. This case underscores the necessity of comprehensive security hygiene practices including regular security audits, vulnerability scanning, and maintaining updated security tooling. Organizations should also consider implementing security awareness training for administrators to recognize potential attack vectors and maintain vigilance against social engineering attempts that might accompany such technical exploits. The incident serves as a reminder that even seemingly minor input validation flaws can have significant security implications in privileged administrative contexts.