CVE-2021-4363 : The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Reflected Cro

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.

Published 2023-06-07 02:15:14

Updated 2023-06-13 15:05:14

Source Wordfence

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2021-4363

Webdevocean » Wp Quick Frontend Editor » For Wordpress
Versions up to, including, (<=) 5.5
cpe:2.3:a:webdevocean:wp_quick_frontend_editor:*:*:*:*:*:wordpress:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-4363

EPSS FAQ

0.14%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 50 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-4363

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None
6.1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	Wordfence
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2021-4363

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Assigned by:
- nvd@nist.gov (Primary)
- security@wordfence.com (Secondary)

References for CVE-2021-4363

https://blog.nintechnet.com/multiple-vulnerabilities-in-wordpress-wp-quick-frontend-editor-plugin-unpatched/

Multiple vulnerabilities in WordPress WP Quick FrontEnd Editor plugin (unpatched). – NinTechNet
Exploit

CVEs referencing this url
https://www.wordfence.com/threat-intel/vulnerabilities/id/7ce8ae7d-c2a5-4da3-8bdd-20dfdb5ce700?source=cve

WP Quick FrontEnd Editor <= 5.5 - Reflected Cross-Site Scripting
Third Party Advisory
https://wordpress.org/plugins/wp-quick-front-end-editor/#developers

WP Quick FrontEnd Editor – WordPress Plugin – WordPress plugin | WordPress.org
Product

CVEs referencing this url

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Vulnerability Details : CVE-2021-4363

Products affected by CVE-2021-4363

Exploit prediction scoring system (EPSS) score for CVE-2021-4363

CVSS scores for CVE-2021-4363

CWE ids for CVE-2021-4363

References for CVE-2021-4363