CVE-2023-51668 in Inline Image Upload for BBPress Plugin
Summary
by MITRE • 01/05/2024
Cross-Site Request Forgery (CSRF) vulnerability in WP Zone Inline Image Upload for BBPress.This issue affects Inline Image Upload for BBPress: from n/a through 1.1.18.
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Analysis
by VulDB Data Team • 01/24/2024
The CVE-2023-51668 vulnerability represents a critical cross-site request forgery flaw within the WP Zone Inline Image Upload plugin for BBPress, a widely used forum management system within wordpress environments. This vulnerability specifically impacts versions ranging from the initial release through 1.1.18, creating a persistent security risk for forum administrators and users who rely on the inline image upload functionality. The flaw resides in the plugin's failure to implement proper anti-CSRF mechanisms, allowing malicious actors to exploit the system's trust relationship with legitimate users.
The technical implementation of this CSRF vulnerability stems from the absence of anti-CSRF tokens in the image upload endpoints. When users navigate to BBPress forums and attempt to upload images inline, the plugin processes these requests without validating the authenticity of the request origin or user intent. This design flaw enables attackers to craft malicious requests that appear to originate from authenticated users, leveraging the browser's automatic credential inclusion for authentication. The vulnerability operates at the application layer, specifically targeting the web application's session management and request validation processes, making it particularly dangerous in environments where forum administrators or users maintain elevated privileges.
The operational impact of this vulnerability extends beyond simple data exposure, as it creates potential pathways for unauthorized content manipulation, forum spamming, and even privilege escalation within affected systems. An attacker could potentially upload malicious images that trigger security issues, manipulate forum content, or disrupt normal user activities. The vulnerability's exploitation requires minimal technical expertise, making it particularly dangerous as it could be leveraged by attackers with basic knowledge of web application security. This risk is amplified in environments where forum administrators frequently upload content or where users have sufficient privileges to modify forum structure and content.
Organizations and developers should immediately implement mitigation strategies including updating to patched versions of the WP Zone Inline Image Upload plugin, implementing additional CSRF protection measures, and conducting comprehensive security assessments of their BBPress installations. The vulnerability aligns with CWE-352, which specifically addresses cross-site request forgery weaknesses in web applications, and represents a clear violation of the principle of least privilege and proper authentication mechanisms. Security teams should also consider implementing web application firewalls, monitoring for suspicious upload patterns, and establishing robust incident response procedures to address potential exploitation attempts. The ATT&CK framework categorizes this vulnerability under the technique of "Web Application Attack," specifically related to "Cross-Site Request Forgery" and "Command and Control" activities that could be leveraged for persistent access to compromised forums.