CVE-2022-23993 Cross-site scripting in n/a

Medium 6.1 Published 26 Jan 2022 Updated 3 Aug 2024

Cross-site scripting vulnerability in pfSense allows attackers to inject malicious scripts via the package filter parameter, potentially leading to session hijacking or code execution.

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-2022-23993?

CVE-2022-23993 is a medium-severity cross-site scripting vulnerability in n/a, published on 26 Jan 2022. 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

/usr/local/www/pkg.php in pfSense CE before 2.6.0 and pfSense Plus before 22.01 uses $_REQUEST['pkg_filter'] in a PHP echo call, causing XSS.

Weakness: CWE-79

Which versions are affected by CVE-2022-23993?

It affects 2 products.

Products include Pfsense Pfsense, Pfsense Pfsense Plus.

How do I fix CVE-2022-23993?

No fix has been published for CVE-2022-23993 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-2022-23993 being exploited?

There is no known exploitation of CVE-2022-23993 in the wild and no public exploit code.

Sources

Also known as GHSA-69h6-vqxf-rc54.