CVE-2021-24365 Admin Columns Free (< 4.3.2) & Pro (< 5.5.2) - Authenticated Stored Cross-Site Scripting (XSS) in Custom Field

Medium 5.4 Published Updated

Authenticated attackers can inject malicious scripts via unescaped custom field columns in Admin Columns, potentially leading to session hijacking or code execution.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-24365?

CVE-2021-24365 is a medium-severity cross-site scripting vulnerability in AdminColumns Admin Columns, published on 12 Jul 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Admin Columns WordPress plugin Free before 4.3.2 and Pro before 5.5.2 allowed to configure individual columns for tables. Each column had a type. The type "Custom Field" allowed to choose an arbitrary database column to display in the table. There was no escaping applied to the contents of "Custom Field" columns.

Weakness: CWE-79

Which versions are affected by CVE-2021-24365?

It affects 1 product.

Products include Admincolumns Admin Columns.

How do I fix CVE-2021-24365?

No fix has been published for CVE-2021-24365 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-24365 being exploited?

There is no known exploitation of CVE-2021-24365 in the wild and no public exploit code.

Sources

Also known as GHSA-q7j6-278p-wvrh.

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