CVE-2023-3992 PostX - Gutenberg Post Grid Blocks < 3.0.6 - Reflected Cross-Site Scripting

Medium 6.1 Published Updated

Attackers can inject malicious scripts via unsanitized parameters, potentially compromising admin accounts in the PostX WordPress plugin.

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

What is CVE-2023-3992?

CVE-2023-3992 is a medium-severity cross-site scripting vulnerability in Unknown PostX, published on 30 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The PostX WordPress plugin before 3.0.6 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

Which versions are affected by CVE-2023-3992?

It affects 1 product.

Products include Wpxpo Postx.

How do I fix CVE-2023-3992?

No fix has been published for CVE-2023-3992 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-2023-3992 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3992 exists.

Sources

Also known as GHSA-xpfj-gvqx-gmx2.

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