Platform
wordpress
Component
ajax-extend
Fixed in
1.0.1
CVE-2024-49254 describes a Remote Code Execution (RCE) vulnerability within the ajax-extend WordPress plugin. This flaw allows attackers to inject arbitrary code, leading to complete server compromise. The vulnerability impacts versions of ajax-extend up to and including 1.0, with a fix available in version 1.0.1. Prompt patching is strongly recommended.
The impact of this RCE vulnerability is severe. An attacker exploiting this flaw can execute arbitrary code on the affected WordPress server with the privileges of the web server user. This could lead to complete system compromise, including data exfiltration, malware installation, and defacement of the website. The attacker could potentially gain access to sensitive data stored on the server, including user credentials, database information, and configuration files. Given the plugin's functionality (likely extending AJAX capabilities), an attacker could leverage this to manipulate website functionality and potentially pivot to other systems on the network.
CVE-2024-49254 was publicly disclosed on 2024-10-16. The vulnerability's ease of exploitation and the potential for significant impact suggest a medium to high probability of exploitation. As of this writing, no public proof-of-concept (PoC) code has been widely released, but the RCE nature of the vulnerability makes it a high-priority target for attackers. Monitor CISA and vendor advisories for updates and potential exploitation campaigns.
Exploit Status
EPSS
0.23% (45% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2024-49254 is to immediately upgrade the ajax-extend plugin to version 1.0.1 or later. If upgrading is not immediately feasible due to compatibility issues or breaking changes, consider temporarily disabling the plugin. Web application firewalls (WAFs) configured with rules to detect and block code injection attempts may provide some protection. Monitor WordPress logs for suspicious activity, particularly requests containing unusual characters or patterns that might indicate an exploitation attempt. After upgrading, verify the fix by attempting to trigger the vulnerability through a known attack vector (if available) and confirming that the code injection is prevented.
Update the ajax-extend plugin to a version later than 1.0. If no version is available, consider uninstalling the plugin until a patched version is released. This will prevent remote code execution on your website.
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CVE-2024-49254 is a critical Remote Code Execution vulnerability in the ajax-extend WordPress plugin, allowing attackers to execute arbitrary code on the server.
You are affected if you are using ajax-extend version 1.0 or earlier. Upgrade to 1.0.1 to mitigate the risk.
Upgrade the ajax-extend plugin to version 1.0.1 or later through the WordPress plugin manager or via the command line using wp plugin update ajax-extend --version=1.0.1.
While no widespread exploitation has been confirmed, the vulnerability's severity and ease of exploitation suggest a high probability of future attacks.
Check the ajax-extend plugin's official website or WordPress plugin repository for the latest advisory and updates.
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