CVE-2019-7887 Magento 2 Community Edition Cross-site Scripting Vulnerability

What is CVE-2019-7887?

CVE-2019-7887 is a medium-severity cross-site scripting vulnerability in Magento Magento, published on 2 Aug 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A reflected cross-site scripting vulnerability exists in the admin panel of 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 when the feature that adds a secret key to the Admin URL is disabled.

Weakness: CWE-79

Which versions are affected by CVE-2019-7887?

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

Products include Magento Magento.

How do I fix CVE-2019-7887?

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-2019-7887 being exploited?

There is no known exploitation of CVE-2019-7887 in the wild and no public exploit code.

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Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-rj8f-g5gm-jw5c.