CVE-2023-39007 Cross-site scripting in n/a

Critical 9.6 Published 9 Aug 2023 Updated 10 Oct 2024

Cross-site scripting in OPNsense Cron component allows attackers to execute scripts in admin sessions, potentially leading to account takeover.

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-2023-39007?

CVE-2023-39007 is a critical cross-site scripting vulnerability in n/a, published on 9 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

/ui/cron/item/open in the Cron component of OPNsense Community Edition before 23.7 and Business Edition before 23.4.2 allows XSS via openAction in app/controllers/OPNsense/Cron/ItemController.php.

Weakness: CWE-79

Which versions are affected by CVE-2023-39007?

It affects 1 product.

Products include Opnsense Opnsense.

How do I fix CVE-2023-39007?

No fix has been published for CVE-2023-39007 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-2023-39007 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39007 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-wm32-j2xh-9mq5.