CVE-2024-2123 & CVE-2024-2510: Avada Builder Patch Guidance

Security researchers have identified two significant vulnerabilities in the Avada Builder plugin, a primary component of the Avada WordPress theme. According to BleepingComputer, these flaws present a severe risk to the approximately one million websites using the plugin, potentially leading to unauthorized data access and full site compromise. The discovery highlights the ongoing risks associated with popular third-party components in the WordPress ecosystem, where a single CVE can impact a massive user base simultaneously.

Technical Analysis of Avada Builder Vulnerabilities

The most pressing issue is CVE-2024-2123, a local file inclusion (LFI) vulnerability. This flaw stems from insufficient input validation when the plugin handles file paths. An attacker can leverage this to read arbitrary files from the server, including sensitive configuration files such as wp-config.php. Since this file contains the database credentials, an attacker could transition from reading files to directly accessing the site’s database, facilitating further Lateral Movement within the hosting environment.

The second vulnerability, CVE-2024-2510, is an authenticated SQL injection (SQLi) flaw. While it requires the attacker to have at least ‘Contributor’ level permissions, it allows for the extraction of sensitive information from the database that would otherwise be inaccessible. This includes user hashes, personal data, and internal site configurations. Although the CVSS score may vary based on environmental factors, the ability to dump database contents makes this a high-priority concern for any multi-user WordPress site.

How to Detect CVE-2024-2123 Exploit Attempts

Defenders should monitor web server logs for suspicious path traversal patterns. Specifically, look for requests containing sequences like ../ or /etc/passwd directed at Avada Builder’s endpoint. When configured correctly, a SIEM can alert a SOC analyst to these IoC patterns in real-time. Detecting these attempts early is vital because LFI is often a precursor to RCE if the attacker can successfully include a file they control, such as a log file containing injected PHP code.

Remediation and WordPress SQL Injection Mitigation Steps

The primary remediation step is to apply the Avada Builder 3.11.7 patch guidance provided by the developers. The security fixes are included in version 3.11.7 and all subsequent releases. Sites running version 3.11.6 or older remain vulnerable to both LFI and SQLi attacks.

Beyond patching, administrators should implement WordPress SQL injection mitigation steps, such as using a Web Application Firewall (WAF) to filter malicious SQL queries. Additionally, following the principle of least privilege ensures that even if a Contributor account is compromised, the scope of what an attacker can achieve via CVE-2024-2510 is limited. Ensuring that database users have restricted permissions can further contain the impact of such vulnerabilities.