CVE-2018-20837 Cross-site scripting in n/a

Medium 4.8 Published 9 May 2019 Updated 5 Aug 2024

Cross-site scripting vulnerability in Typesetter CMS allows attackers to inject malicious scripts via the admin menu, potentially leading to session hijacking or code execution.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2018-20837?

CVE-2018-20837 is a medium-severity cross-site scripting vulnerability in n/a, published on 9 May 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

include/admin/Menu/Ajax.php in Typesetter 5.1 has index.php/Admin/Menu/Ajax?cmd=AddHidden title XSS.

Weakness: CWE-79

Which versions are affected by CVE-2018-20837?

It affects 1 product.

Products include Typesettercms Typesetter.

How do I fix CVE-2018-20837?

No fix has been published for CVE-2018-20837 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-2018-20837 being exploited?

There is no known exploitation of CVE-2018-20837 in the wild and no public exploit code.

Sources

Also known as GHSA-36q9-65j8-xvpg.