CVE-2022-37721 PyroCMS vulnerable to stored Cross Site Scripting

Critical 9.0 Published Updated

A stored XSS vulnerability in PyroCMS allows low-privileged users to inject scripts, potentially leading to admin account takeover or privilege escalation.

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-2022-37721?

CVE-2022-37721 is a critical cross-site scripting vulnerability in n/a, published on 25 Nov 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

PyroCMS 3.9 is vulnerable to a stored Cross Site Scripting (XSS_ when a low privileged user such as an author, injects a crafted html and javascript payload in a blog post, leading to full admin account takeover or privilege escalation.

Weakness: CWE-79

Which versions are affected by CVE-2022-37721?

2 open source packages ship an affected version, including pyrocms/pyrocms. It affects 1 product.

PackageAffectedFixed in
pyrocms/pyrocms PackagistAll versions to 3.9.1None
pyrocms/pyrocms PackagistAll versions to 3.9.1None

Products include Pyrocms Pyrocms.

How do I fix CVE-2022-37721?

No fix has been published for CVE-2022-37721 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-2022-37721 being exploited?

There is no known exploitation of CVE-2022-37721 in the wild and no public exploit code.

Sources

Also known as GHSA-cm7f-hf2g-ghrp.

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