CVE-2024-56216 is a Local File Inclusion (LFI) vulnerability found in the Themify Builder plugin for WordPress, specifically in versions up to 7.6.3. The vulnerability arises from improper control over the filename parameter used in PHP include or require statements. When an application includes files based on user input without proper validation or sanitization, attackers can manipulate the input to include unintended files from the server’s filesystem. This can lead to disclosure of sensitive files such as configuration files, password files, or application source code. In some cases, LFI can be leveraged to execute arbitrary code if combined with other vulnerabilities or if the attacker can upload files to the server. Themify Builder is a popular WordPress page builder plugin used to create and customize website layouts. The vulnerability does not currently have a CVSS score or known public exploits, but its presence in a widely used plugin poses a significant risk. The lack of patch links suggests that a fix has not yet been publicly released, increasing the urgency for administrators to apply workarounds or monitor for updates. The vulnerability’s exploitation depends on the attacker’s ability to control the filename parameter, which may require authentication or be accessible via unauthenticated requests depending on the plugin’s implementation and site configuration. This vulnerability is categorized under improper control of filename for include/require statements, a common vector for LFI attacks in PHP applications.

The impact of CVE-2024-56216 can be severe for organizations using the Themify Builder plugin on their WordPress sites. Exploitation of this LFI vulnerability can lead to unauthorized disclosure of sensitive server files, including configuration files containing database credentials, API keys, or other secrets. This can compromise the confidentiality of critical data. Additionally, attackers might leverage LFI to execute arbitrary code or pivot to further attacks such as privilege escalation or full site takeover, impacting integrity and availability. For e-commerce, media, and enterprise websites relying on Themify Builder, such a compromise could result in data breaches, defacement, service disruption, and reputational damage. The widespread use of WordPress and Themify Builder increases the potential attack surface globally. Although no known exploits are currently in the wild, the vulnerability’s presence in a popular plugin makes it a likely target for attackers once exploit code becomes available. Organizations without timely mitigation or patching risk significant operational and security consequences.

To mitigate CVE-2024-56216, organizations should immediately audit their WordPress installations to identify the use of Themify Builder plugin versions up to 7.6.3. Until an official patch is released, administrators should consider the following specific actions: 1) Restrict access to the plugin’s PHP files and any endpoints that accept filename parameters via web application firewall (WAF) rules or server configuration to block suspicious requests attempting file inclusion. 2) Implement strict input validation and sanitization on any user-controllable parameters related to file inclusion, if custom modifications exist. 3) Disable or limit plugin features that allow dynamic file inclusion if feasible. 4) Monitor web server and application logs for unusual requests or errors indicative of LFI attempts. 5) Keep WordPress core, plugins, and themes updated and subscribe to vendor security advisories for timely patch releases. 6) Employ principle of least privilege on the web server filesystem to limit accessible files to the web server user, reducing the impact of LFI exploitation. 7) Consider deploying runtime application self-protection (RASP) or endpoint detection and response (EDR) solutions that can detect and block suspicious file inclusion behavior. These targeted mitigations go beyond generic advice by focusing on access restrictions, input validation, and monitoring specific to the nature of this vulnerability.