vulnerability

WordPress Plugin: w3-total-cache: CVE-2021-24436: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Jun 28, 2021
Added
May 15, 2025
Modified
Jun 24, 2025

Description

The W3 Total Cache WordPress plugin before 2.1.4 was vulnerable to a reflected Cross-Site Scripting (XSS) security vulnerability within the "extension" parameter in the Extensions dashboard, which is output in an attribute without being escaped first. This could allow an attacker, who can convince an authenticated admin into clicking a link, to run malicious JavaScript within the user's web browser, which could lead to full site compromise.

Solution

w3-total-cache-plugin-cve-2021-24436
Title
NEW

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