QID 154144

Date Published: 2023-10-11

QID 154144: WordPress W3 Total Cache Plugin: Reflected Cross-Site Scripting (XSS) Vulnerability (CVE-2021-24436)

W3 Total Cache is a WordPress plugin which 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.

In affected versions of W3 Total Cache, a Reflected Cross-Site Scripting (XSS) Vulnerability exists within the "extension" parameter in the Extensions dashboard.

Affected Versions:
W3 Total Cache prior to version 2.1.4

QID Detection Logic:(Unauthenticated)
This QID checks for vulnerable version of W3 Total Cache plugin running on the target application.

Successful exploitation could allow an attacker to execute arbitrary JavaScript code in the context of the interface or allow the attacker to access sensitive, browser-based information.

  • CVSS V3 rated as High - 6.1 severity.
  • CVSS V2 rated as Medium - 4.3 severity.
    • Solution
    Customers are advised to upgrade to latest version of W3 Total Cache plugin. For more information pertaining to remediating this vulnerability please refer WPScan Advisory
    Vendor References

    CVEs related to QID 154144

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