CVE-2013-7129 in Blooog theme
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in ThemeBeans Blooog theme 1.1 for WordPress allows remote attackers to inject arbitrary web script or HTML via the jQuery parameter to assets/js/jplayer.swf.
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Analysis
by VulDB Data Team • 01/18/2022
The CVE-2013-7129 vulnerability represents a critical cross-site scripting flaw discovered in the ThemeBeans Blooog WordPress theme version 1.1. This vulnerability resides within the theme's handling of user input through the jQuery parameter that is passed to the assets/js/jplayer.swf file. The issue stems from inadequate input validation and output encoding mechanisms within the theme's javascript implementation, creating an avenue for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers. The vulnerability specifically affects WordPress installations utilizing the Blooog theme, making it a targeted concern for website administrators who have not updated to patched versions of this particular theme.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing crafted javascript or HTML content within the jQuery parameter of the jplayer.swf file. When a victim visits a page that triggers the vulnerable code path, the malicious script executes in the victim's browser context, potentially leading to session hijacking, credential theft, or redirection to malicious websites. The vulnerability's classification as a reflected XSS issue indicates that the malicious payload is reflected back to the user through the application's response, making it particularly dangerous as it can be delivered via email links, social media posts, or any other means that directs users to the vulnerable page. This type of vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws in software applications.
The operational impact of CVE-2013-7129 extends beyond simple script injection, potentially enabling attackers to compromise entire user sessions and gain unauthorized access to sensitive information. Attackers can leverage this vulnerability to steal cookies, modify user preferences, or even escalate privileges within the WordPress environment if users have administrative access. The vulnerability's presence in a widely used WordPress theme means that numerous websites could be simultaneously compromised, creating a significant risk for website owners who may not be actively monitoring for such vulnerabilities. Additionally, the attack vector through the SWF file suggests that the vulnerability may be particularly challenging to detect and remediate, as it involves multimedia file processing within the web application context. The threat landscape for such vulnerabilities aligns with ATT&CK technique T1566 which covers social engineering tactics including the use of malicious web content to compromise systems.
Mitigation strategies for this vulnerability primarily involve immediate theme updates to versions that have patched the XSS flaw in the jplayer.swf file processing. Website administrators should implement proper input validation and output encoding mechanisms to prevent malicious payloads from being executed. The implementation of Content Security Policy headers can provide additional protection against XSS attacks by restricting the sources from which scripts can be loaded. Regular security audits and monitoring of WordPress themes and plugins are essential to identify similar vulnerabilities before they can be exploited. Organizations should also consider implementing web application firewalls to detect and block malicious requests targeting known XSS patterns. The vulnerability serves as a reminder of the importance of keeping all WordPress components updated and the critical role that proper input sanitization plays in preventing cross-site scripting attacks.