CVE-2021-24705 NEX-Forms < 8.4.3 - Stored Cross-Site Scripting via CSRF

Medium 4.8 Published Updated

Attackers can inject malicious scripts into NEX-Forms via CSRF, potentially compromising admin accounts and executing code in the browser.

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

What is CVE-2021-24705?

CVE-2021-24705 is a medium-severity cross-site scripting vulnerability in Unknown NEX-Forms, published on 13 Dec 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The NEX-Forms WordPress plugin before 8.4.3 does not have CSRF checks in place when editing a form, and does not escape some of its settings as well as form fields before outputting them in attributes. This could allow attackers to make a logged in admin edit arbitrary forms with Cross-Site Scripting payloads in them

Which versions are affected by CVE-2021-24705?

It affects 1 product.

Products include Basixonline Nex-Forms.

How do I fix CVE-2021-24705?

No fix has been published for CVE-2021-24705 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-2021-24705 being exploited?

There is no known exploitation of CVE-2021-24705 in the wild and no public exploit code.

Sources

Also known as GHSA-5w27-mg8j-wjm2.

Is CVE-2021-24705 in your software?

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