CVE-2019-19133 : Security Advisory and Response
Learn about CVE-2019-19133 affecting CSS Hero plugin versions up to 4.0.3 for WordPress, enabling XSS attacks. Find mitigation steps and update recommendations.
The WordPress plugin called CSS Hero, versions up to and including 4.0.3, has a vulnerability that allows reflected cross-site scripting (XSS) attacks.
Understanding CVE-2019-19133
This CVE involves a security vulnerability in the CSS Hero plugin for WordPress that could be exploited by attackers to execute malicious JavaScript code.
What is CVE-2019-19133?
The vulnerability in CSS Hero plugin versions up to 4.0.3 allows attackers to perform reflected cross-site scripting (XSS) attacks by injecting malicious code into the URI of a request with the csshero_action=edit_page parameter.
The Impact of CVE-2019-19133
Exploiting this vulnerability could enable attackers to execute arbitrary JavaScript code in the browser of visitors to the affected website, potentially leading to the theft of cookies or initiation of other malicious activities.
Technical Details of CVE-2019-19133
The technical aspects of the vulnerability in the CSS Hero plugin.
Vulnerability Description
The CSS Hero plugin up to version 4.0.3 for WordPress is susceptible to reflected XSS via the URI in a csshero_action=edit_page request due to inadequate sanitization of user-supplied input.
Affected Systems and Versions
- Product: CSS Hero plugin
- Vendor: N/A
- Versions affected: Up to and including 4.0.3
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious code into the URI of a request with the csshero_action=edit_page parameter, allowing them to execute arbitrary JavaScript in the context of the affected site.
Mitigation and Prevention
Steps to mitigate and prevent the exploitation of CVE-2019-19133.
Immediate Steps to Take
- Update the CSS Hero plugin to the latest version to patch the vulnerability.
- Monitor website activity for any signs of unauthorized access or malicious behavior.
Long-Term Security Practices
- Regularly update all plugins and themes to ensure the latest security patches are applied.
- Educate website administrators and users about the risks of XSS attacks and best practices for secure web browsing.
Patching and Updates
Ensure timely installation of security updates and patches provided by the plugin vendor to address known vulnerabilities.