CVE-2024-49625: SiteBuilder Dynamic Components Flaw

CVE-2024-49625 Overview

CVE-2024-49625 is a critical insecure deserialization vulnerability affecting the SiteBuilder Dynamic Components WordPress plugin developed by sphoid/brandonclark. The vulnerability allows attackers to perform PHP Object Injection attacks by exploiting improper handling of serialized data within the plugin. This flaw enables unauthenticated remote attackers to inject malicious PHP objects, potentially leading to remote code execution, data exfiltration, or complete site compromise.

Critical Impact

Unauthenticated attackers can exploit this PHP Object Injection vulnerability to execute arbitrary code, modify database contents, or gain complete control over affected WordPress installations without any user interaction required.

Affected Products

• SiteBuilder Dynamic Components plugin version 1.0 and earlier
• WordPress installations running the sitebuilder-dynamic-components plugin
• All platforms hosting WordPress sites with this plugin enabled

Discovery Timeline

• 2024-10-20 - CVE-2024-49625 published to NVD
• 2026-04-01 - Last updated in NVD database

Technical Details for CVE-2024-49625

Vulnerability Analysis

This vulnerability stems from the deserialization of untrusted data (CWE-502) within the SiteBuilder Dynamic Components plugin. When user-supplied data is passed to PHP's unserialize() function without proper validation or sanitization, attackers can craft malicious serialized objects that execute arbitrary code upon deserialization.

The vulnerability is exploitable over the network without requiring authentication or user interaction. Successful exploitation can result in complete compromise of confidentiality, integrity, and availability of the affected WordPress installation.

Root Cause

The root cause of CVE-2024-49625 is the improper handling of serialized data within the SiteBuilder Dynamic Components plugin. The plugin fails to validate or sanitize user-controlled input before passing it to PHP's deserialization functions. When combined with existing PHP classes that have exploitable magic methods (such as __wakeup(), __destruct(), or __toString()), attackers can chain these "gadgets" to achieve arbitrary code execution.

PHP Object Injection vulnerabilities of this nature are particularly dangerous in WordPress environments due to the extensive codebase and numerous plugins that may contain exploitable class definitions that can be leveraged in POP (Property Oriented Programming) chains.

Attack Vector

The attack vector for this vulnerability is network-based, requiring no authentication or privileges. An attacker can submit specially crafted serialized PHP objects through plugin input handlers. The serialized payload is processed by the vulnerable code path, triggering the deserialization of attacker-controlled data.

The exploitation process involves constructing a serialized PHP object containing malicious properties that, when deserialized, invoke magic methods in a chain that ultimately executes attacker-supplied code. Common exploitation targets include file operations, database queries, or system command execution.

For technical details on this vulnerability, refer to the Patchstack WordPress Vulnerability Report.

Detection Methods for CVE-2024-49625

Indicators of Compromise

• Unusual serialized data patterns in HTTP request parameters, particularly containing PHP object notation (e.g., O:8:"ClassName")
• Unexpected file modifications or new files appearing in WordPress directories
• Anomalous database queries or modifications not attributable to normal site operations
• Web server logs showing requests with base64-encoded or URL-encoded serialized PHP objects

Detection Strategies

• Monitor web application firewall (WAF) logs for serialized PHP object patterns in request bodies and parameters
• Implement intrusion detection rules to identify PHP serialization signatures such as O:[0-9]+:" in HTTP traffic
• Review WordPress plugin audit logs for unexpected plugin behavior or configuration changes
• Scan for the presence of the vulnerable sitebuilder-dynamic-components plugin in WordPress installations

Monitoring Recommendations

• Enable verbose logging for the WordPress installation and monitor for PHP errors related to deserialization
• Configure real-time alerting for file integrity monitoring on WordPress core and plugin directories
• Implement network traffic analysis to detect suspicious serialized object payloads
• Regularly audit installed WordPress plugins against known vulnerability databases

How to Mitigate CVE-2024-49625

Immediate Actions Required

• Immediately deactivate and remove the SiteBuilder Dynamic Components plugin from all WordPress installations
• Conduct a thorough security audit of affected WordPress sites for signs of compromise
• Review user accounts and access logs for any unauthorized modifications or new administrator accounts
• Restore from known-good backups if evidence of compromise is discovered

Patch Information

As of the last NVD update on 2026-04-01, no official patch has been released that addresses this vulnerability. The affected versions include all releases of SiteBuilder Dynamic Components through version 1.0. Site administrators should remove the plugin entirely until a patched version becomes available.

For the latest information, monitor the Patchstack WordPress Vulnerability Report for updates.

Workarounds

• Remove or deactivate the SiteBuilder Dynamic Components plugin immediately as no patch is currently available
• Implement a Web Application Firewall (WAF) rule to block requests containing serialized PHP object patterns
• Consider using WordPress security plugins that provide virtual patching capabilities for known vulnerabilities
• Apply network-level restrictions to limit access to WordPress administrative functions

# WordPress CLI command to deactivate the vulnerable plugin
wp plugin deactivate sitebuilder-dynamic-components --path=/var/www/html/wordpress

# Verify the plugin is deactivated
wp plugin status sitebuilder-dynamic-components --path=/var/www/html/wordpress

# Completely remove the vulnerable plugin
wp plugin delete sitebuilder-dynamic-components --path=/var/www/html/wordpress