CVE-2023-0439 NEX-Forms < 8.4.4 - Authenticated Stored XSS

Medium 5.4 Published Updated

Authenticated attackers can inject malicious scripts via form names in NEX-Forms, 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-2023-0439?

CVE-2023-0439 is a medium-severity cross-site scripting vulnerability in Unknown NEX-Forms, published on 17 Jul 2023. 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 NEX-Forms WordPress plugin before 8.4.4 does not escape its form name, which could lead to Stored Cross-Site Scripting issues. By default only SuperAdmins (in multisite) / admins (in single site) can create forms, however there is a settings allowing them to give lower roles access to such feature.

Which versions are affected by CVE-2023-0439?

It affects 1 product.

Products include Basixonline Nex-Forms.

How do I fix CVE-2023-0439?

No fix has been published for CVE-2023-0439 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-2023-0439 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0439 exists.

Sources

Also known as GHSA-42c6-gcr4-xh6h.

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