CVE-2020-27193 Improper Neutralization of Input During Web Page Generation in CKEditor4

Medium 6.1 Published Updated

Remote attackers can execute arbitrary web script by tricking users into pasting crafted HTML into the CKEditor Color Dialog plugin.

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
Available

What is CVE-2020-27193?

CVE-2020-27193 is a medium-severity cross-site scripting vulnerability in Oracle Agile Product Lifecycle Management, published on 12 Nov 2020. 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

A cross-site scripting (XSS) vulnerability in the Color Dialog plugin for CKEditor 4.15.0 allows remote attackers to run arbitrary web script after persuading a user to copy and paste crafted HTML code into one of editor inputs.

Weakness: CWE-79

Which versions are affected by CVE-2020-27193?

2 open source packages ship an affected version, including ckeditor4. It affects 9 products.

PackageAffectedFixed in
ckeditor4 npmAll versions4.15.1
ckeditor4 npmAll versions4.15.1

Products include Ckeditor Ckeditor, Oracle Agile Product Lifecycle Management, Oracle Application Express, Oracle Banking Party Management, Oracle Banking Platform, Oracle Commerce Merchandising and 3 more.

How do I fix CVE-2020-27193?

Upgrade ckeditor4 to 4.15.1 or later.

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-2020-27193 being exploited?

There is no known exploitation of CVE-2020-27193 in the wild and no public exploit code.

All Oracle Agile Product Lifecycle Management vulnerabilities

Sources

Also known as GHSA-4m44-5j2g-xf64.

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