CVE-2022-40047 Cross-site scripting in n/a

Medium 5.4 Published 11 Oct 2022 Updated 9 Jul 2026

Reflected XSS in Flatpress admin panel allows attackers to execute scripts in victim browsers, potentially leading to session hijacking or account takeover.

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-2022-40047?

CVE-2022-40047 is a medium-severity cross-site scripting vulnerability in n/a, published on 11 Oct 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Flatpress v1.2.1 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the page parameter at /flatpress/admin.php.

Weakness: CWE-79

Which versions are affected by CVE-2022-40047?

It affects 1 product.

Products include Flatpress Flatpress.

How do I fix CVE-2022-40047?

No fix has been published for CVE-2022-40047 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-2022-40047 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-40047 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-8658-c36g-5m8j.