CVE-2021-4363: XSS
First published: Wed Jun 07 2023(Updated: )
The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 5.5 due to insufficient input sanitization and output escaping on the 'save_content_front' function that uses print_r on the user-supplied $_REQUEST values . This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Credit: security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Webdevocean Wp Quick Frontend Editor | <=5.5 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-4363?
CVE-2021-4363 is a vulnerability in the WP Quick FrontEnd Editor plugin for WordPress that allows for Reflected Cross-Site Scripting.
How does CVE-2021-4363 work?
CVE-2021-4363 works by not properly sanitizing and escaping input on the 'save_content_front' function, which can lead to the execution of malicious scripts.
What is the severity of CVE-2021-4363?
The severity of CVE-2021-4363 is medium, with a CVSS score of 6.1.
How can CVE-2021-4363 be fixed?
CVE-2021-4363 can be fixed by updating the WP Quick FrontEnd Editor plugin to a version above 5.5 or applying any available patches.
Where can I find more information about CVE-2021-4363?
More information about CVE-2021-4363 can be found in the references provided: [Reference 1](https://blog.nintechnet.com/multiple-vulnerabilities-in-wordpress-wp-quick-frontend-editor-plugin-unpatched/), [Reference 2](https://wordpress.org/plugins/wp-quick-front-end-editor/#developers), [Reference3](https://www.wordfence.com/threat-intel/vulnerabilities/id/7ce8ae7d-c2a5-4da3-8bdd-20dfdb5ce700?source=cve)
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