CVE-2019-8153 Magento Cross-site Scripting (XSS)

Medium 6.1 Published Updated

Attackers can bypass URL escaping to execute malicious cross-site scripting payloads in Magento, requiring an upgrade to secure versions.

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-2019-8153?

CVE-2019-8153 is a medium-severity cross-site scripting vulnerability in Magento Magento, published on 5 Nov 2019. 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 mitigation bypass to prevent cross-site scripting (XSS) exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. Successful exploitation of this vulnerability would result in an attacker being able to bypass the `escapeURL()` function and execute a malicious XSS payload.

Weakness: CWE-79

Which versions are affected by CVE-2019-8153?

4 open source packages ship an affected version, including magento/community-edition. It affects 1 product.

PackageAffectedFixed in
magento/community-edition PackagistFrom 2.2.02.2.10
magento/community-edition PackagistFrom 2.2.02.2.10
magento/community-edition PackagistFrom 2.3.02.3.2-p2
magento/community-edition PackagistFrom 2.3.02.3.2-p2

Products include Magento Magento.

How do I fix CVE-2019-8153?

Upgrade magento/community-edition to a fixed version for your release line: 2.2.10 or 2.3.2-p2.

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-2019-8153 being exploited?

There is no known exploitation of CVE-2019-8153 in the wild and no public exploit code.

All Magento Magento vulnerabilities

Sources

Also known as GHSA-273r-v888-vgc6.

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