CVE-2021-32245 Cross-site scripting in PageKit

Medium 5.4 Published Updated

Attackers can upload malicious SVG files to trigger Cross-Site Scripting (XSS) attacks against other users of the PageKit CMS.

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-2021-32245?

CVE-2021-32245 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

In PageKit v1.0.18, a user can upload SVG files in the file upload portion of the CMS. These SVG files can contain malicious scripts. This file will be uploaded to the system and it will not be stripped or filtered. The user can create a link on the website pointing to "/storage/exp.svg" that will point to http://localhost/pagekit/storage/exp.svg. When a user comes along to click that link, it will trigger a XSS attack.

Weakness: CWE-79

Which versions are affected by CVE-2021-32245?

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

PackageAffectedFixed in
pagekit/pagekit PackagistAll versions to 1.0.18None
pagekit/pagekit PackagistAll versions to 1.0.18None

Products include Pagekit Pagekit.

How do I fix CVE-2021-32245?

No fix has been published for CVE-2021-32245 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-2021-32245 being exploited?

There is no known exploitation of CVE-2021-32245 in the wild and no public exploit code.

Sources

Also known as GHSA-mrwr-2945-fr22.

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