CVE-2020-23369 Cross-site scripting in n/a

Medium 6.1 Published 10 May 2021 Updated 4 Aug 2024

Cross-site scripting vulnerability in YzmCMS allows attackers to inject malicious scripts via the IFRAME SRC attribute in member content.

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-2020-23369?

CVE-2020-23369 is a medium-severity cross-site scripting vulnerability in n/a, published on 10 May 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

In YzmCMS 5.6, XSS was discovered in member/member_content/init.html via the SRC attribute of an IFRAME element because of using UEditor 1.4.3.3.

Weakness: CWE-79

Which versions are affected by CVE-2020-23369?

It affects 1 product.

Products include Yzmcms Yzmcms.

How do I fix CVE-2020-23369?

No fix has been published for CVE-2020-23369 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-2020-23369 being exploited?

There is no known exploitation of CVE-2020-23369 in the wild and no public exploit code.

Sources

Also known as GHSA-9vhc-2c9w-phch.