CVE-2021-4403 Information

Description

The Remove Schema plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to and including 1.5. This is due to missing or incorrect nonce validation on the validate() function. This makes it possible for unauthenticated attackers to modify the plugins settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Reference

https://www.wordfence.com/threat-intel/vulnerabilities/id/89635463-966d-4f7d-995d-ad83a502d95b?source=cve https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/ https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/ https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/ https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/ https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/ https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2548575%40remove-schema&new=2548575%40remove-schema&sfp_email=&sfph_mail= https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/ https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

4.3