CVE-2020-20699 Cross-site scripting in n/a

Medium 4.8 Published 27 Jul 2021 Updated 4 Aug 2024

Attackers can execute arbitrary web scripts via a crafted payload in the Copyright text box of S-CMS PHP.

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-2020-20699?

CVE-2020-20699 is a medium-severity cross-site scripting vulnerability in n/a, published on 27 Jul 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A cross site scripting (XSS) vulnerability in S-CMS PHP v3.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the Copyright text box under Basic Settings.

Weakness: CWE-79

Which versions are affected by CVE-2020-20699?

It affects 1 product.

Products include S-Cms S-Cms.

How do I fix CVE-2020-20699?

No fix has been published for CVE-2020-20699 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-2020-20699 being exploited?

There is no known exploitation of CVE-2020-20699 in the wild and no public exploit code.

Sources

Also known as GHSA-g85f-77f4-rh9g.