QID 730858

Date Published: 2023-07-28

QID 730858: WordPress Plugin W3 Total Cache Reflected Cross-Site Scripting (XSS) Vulnerability

W3 Total Cache (W3TC) improves the SEO, Core Web Vitals and overall user experience of your site by increasing website performance and reducing load times by leveraging features like content delivery network (CDN) integration and the latest best practices.

The W3 Total Cache plugin is vulnerable to vulnerable to a reflected Cross-Site Scripting (XSS) security vulnerability within the "extension" parameter in the Extensions dashboard

Affected Versions:
WordPress Plugin W3 Total Cache versions prior to 2.1.4

QID Detection Logic:
This unauthenticated detection depends on the BlindElephant engine to detect the vulnerable version of the W3 Total Cache WordPress plugin.

Successful exploitation of this vulnerability may allow an attacker to execute arbitrary JavaScript code on the target system.

  • CVSS V3 rated as High - 6.1 severity.
  • CVSS V2 rated as Medium - 4.3 severity.
    • Solution
    Customers are advised to upgrade to W3 Total Cache Plugin version 2.1.4 or later version to remediate this vulnerability.
    Vendor References

    CVEs related to QID 730858

    CVE-2021-24436 |
    Software Advisories
    Advisory ID Software Component Link
    W3 Total Cache Plugin Release Notes URL Logo wordpress.org/plugins/w3-total-cache/#developers
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