CVE-2023-2113 : Security Advisory and Response

This CVE record pertains to a vulnerability in the Autoptimize WordPress plugin prior to version 3.1.7, allowing high privileged users to execute stored cross-site scripting (XSS) attacks via settings import.

Understanding CVE-2023-2113

This section delves into the specifics of CVE-2023-2113, shedding light on the nature of the vulnerability and its implications.

What is CVE-2023-2113?

The CVE-2023-2113 vulnerability revolves around the Autoptimize WordPress plugin's failure to properly sanitize and escape settings imported from a previous export. This oversight enables users with elevated privileges, like administrators, to inject arbitrary JavaScript into the admin panel, bypassing restrictions such as the disabled unfiltered_html capability, particularly in multisite configurations.

The Impact of CVE-2023-2113

The impact of CVE-2023-2113 is significant as it allows malicious actors to execute stored cross-site scripting attacks, potentially compromising the security and integrity of affected WordPress websites. By leveraging this vulnerability, attackers can manipulate the plugin's settings to inject harmful scripts, leading to various security risks and exploits.

Technical Details of CVE-2023-2113

In this section, we delve into the technical aspects of CVE-2023-2113, detailing the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in the Autoptimize WordPress plugin stems from its inadequate sanitization and escaping of settings during the import process. This oversight facilitates the insertion of malicious JavaScript code by privileged users, paving the way for cross-site scripting attacks within the admin panel.

Affected Systems and Versions

The vulnerability affects versions of the Autoptimize plugin earlier than 3.1.7, specifically versions with a custom type below 3.1.7. Websites using these vulnerable versions are at risk of exploitation if not promptly addressed.

Exploitation Mechanism

Exploiting CVE-2023-2113 involves importing settings from a prior export using the vulnerable Autoptimize plugin. By leveraging this process, threat actors can inject unauthorized JavaScript code into the admin panel, even when safeguards like the disabled unfiltered_html capability are in place.

Mitigation and Prevention

In the wake of CVE-2023-2113, it is critical for website administrators and developers to take immediate action to mitigate the risks posed by this vulnerability. Implementing robust security practices and applying necessary updates are essential steps in safeguarding WordPress websites.

Immediate Steps to Take

Website administrators should promptly update the Autoptimize plugin to version 3.1.7 or above to eliminate the vulnerability.
Regularly monitor for any suspicious activities or unauthorized changes within the admin panel to detect potential exploitation attempts.
Consider implementing additional security measures, such as web application firewalls and security plugins, to bolster website defenses.

Long-Term Security Practices

Conduct regular security audits and vulnerability scans to identify and address any potential weaknesses within the WordPress ecosystem.
Educate users and administrators about best practices for secure plugin management and configuration to prevent similar security incidents in the future.

Patching and Updates

Stay informed about security advisories and updates released by plugin developers to address known vulnerabilities promptly.
Prioritize the timely installation of patches and updates to ensure that WordPress websites remain resilient against emerging security threats.