CVE-2021-38328 : Security Advisory and Response
Learn about CVE-2021-38328, a vulnerability in the Notices WordPress plugin allowing Reflected Cross-Site Scripting attacks in versions up to 6.1. Take immediate steps to uninstall the plugin and ensure long-term security practices.
The Notices WordPress plugin up to and including version 6.1 is vulnerable to Reflected Cross-Site Scripting (XSS) due to a reflected $_SERVER["PHP_SELF"] value. This allows attackers to inject arbitrary web scripts.
Understanding CVE-2021-38328
This vulnerability in the Notices plugin can be exploited by attackers to execute malicious scripts through a reflected PHP_SELF value in the notices.php file.
What is CVE-2021-38328?
CVE-2021-38328 is a vulnerability in the Notices WordPress plugin that enables Reflected Cross-Site Scripting (XSS) attacks in versions up to and including 6.1.
The Impact of CVE-2021-38328
The impact of this CVE includes allowing attackers to inject and execute arbitrary web scripts within the context of the affected site, potentially leading to sensitive information exposure or unauthorized actions.
Technical Details of CVE-2021-38328
The following technical details provide insight into the vulnerability:
Vulnerability Description
The vulnerability arises from a reflected $_SERVER["PHP_SELF"] value in the ~/notices.php file of the Notices plugin, facilitating the injection of arbitrary web scripts.
Affected Systems and Versions
Notices plugin versions up to and including 6.1 are affected by this XSS vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious scripts via the reflected PHP_SELF value in the notices.php file of the plugin.
Mitigation and Prevention
To address CVE-2021-38328, consider the following steps:
Immediate Steps to Take
Uninstall the Notices WordPress plugin from your WordPress site immediately to mitigate the risk of exploitation.
Long-Term Security Practices
Regularly update all plugins, themes, and the WordPress core to ensure that known vulnerabilities are patched promptly and maintain a secure website.
Patching and Updates
Stay informed about security advisories and updates related to the WordPress plugins you use. Always apply the latest patches and updates to protect your site from potential security threats.