CVE-2021-24153 Information

Description

A Stored Cross-Site Scripting vulnerability was discovered in the Yoast SEO WordPress plugin before 3.4.1 which had built-in blacklist filters which were blacklisting Parenthesis as well as several functions such as alert but bypasses were found.

CVSS Vector

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

Reference

https://wpscan.com/vulnerability/77810044-394d-4314-b9a1-20c7dca726dc https://plugins.trac.wordpress.org/changeset/1466243/wordpress-seo https://packetstormsecurity.com/files/138192/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4