CVE-2019-7945 Magento 2 Community Edition XSS Vulnerability

Medium 5.4 Published Updated

Authenticated users with currency modification privileges can inject malicious JavaScript, enabling session hijacking or data theft in Magento installations.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2019-7945?

CVE-2019-7945 is a medium-severity cross-site scripting vulnerability in Magento Magento, published on 2 Aug 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A stored cross-cite scripting vulnerability exists in Magento Open Source prior to 1.9.4.2, and Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2. An authenticated user with privileges to modify currency symbols can inject malicious javascript.

Weakness: CWE-79

Which versions are affected by CVE-2019-7945?

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

PackageAffectedFixed in
magento/community-edition PackagistFrom 2.1.02.1.18
magento/community-edition PackagistFrom 2.1.02.1.18
magento/community-edition PackagistFrom 2.2.02.2.9
magento/community-edition PackagistFrom 2.2.02.2.9
magento/community-edition PackagistFrom 2.3.02.3.2
magento/community-edition PackagistFrom 2.3.02.3.2

Products include Magento Magento.

How do I fix CVE-2019-7945?

Upgrade magento/community-edition to a fixed version for your release line: 2.1.18, 2.2.9 or 2.3.2.

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-2019-7945 being exploited?

There is no known exploitation of CVE-2019-7945 in the wild and no public exploit code.

All Magento Magento vulnerabilities

Sources

Also known as GHSA-c45w-p293-7cv6.

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