CVE-2020-18702 Cross Site Scripting (XSS) in Quokka

Medium 6.1 Published Updated

Remote attackers can execute arbitrary code via XSS in the Quokka CMS admin panel's username parameter.

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-2020-18702?

CVE-2020-18702 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Aug 2021. 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

Cross Site Scripting (XSS) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the 'Username' parameter in the component 'quokka/admin/actions.py'.

Weakness: CWE-79

Which versions are affected by CVE-2020-18702?

3 open source packages ship an affected version, including quokka. It affects 1 product.

PackageAffectedFixed in
quokka PyPIAll versionsNone
quokka PyPIAll versions to 0.4.0None
quokka PyPIAll versions to 0.4.0None

Products include Quokka Project Quokka.

How do I fix CVE-2020-18702?

No fix has been published for CVE-2020-18702 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-2020-18702 being exploited?

There is no known exploitation of CVE-2020-18702 in the wild and no public exploit code.

Sources

Also known as GHSA-5m69-3chg-6f8m, PYSEC-2021-143.

Is CVE-2020-18702 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free