CVE-2020-9591 Magento defense-in-depth security mitigation vulnerability

What is CVE-2020-9591?

CVE-2020-9591 is a high-severity authentication bypass vulnerability in Magento Magento, published on 26 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Magento versions 2.3.4 and earlier, 2.2.11 and earlier (see note), 1.14.4.4 and earlier, and 1.9.4.4 and earlier have a defense-in-depth security mitigation vulnerability. Successful exploitation could lead to unauthorized access to admin panel.

Which versions are affected by CVE-2020-9591?

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

Products include Magento Magento.

How do I fix CVE-2020-9591?

Upgrade magento/community-edition to 2.3.4-p2 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-9591 being exploited?

There is no known exploitation of CVE-2020-9591 in the wild and no public exploit code.

Other vulnerabilities in Magento Magento

• CVE-2020-9664 Magento php object injection vulnerability Critical 9.8
• CVE-2020-9576 Magento command injection vulnerability Critical 9.8
• CVE-2020-9578 Magento command injection vulnerability Critical 9.8
• CVE-2020-9579 Magento Security mitigation bypass vulnerability Critical 9.8
• CVE-2020-9580 Magento Security mitigation bypass vulnerability Critical 9.8

All Magento Magento vulnerabilities

Sources

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

Also known as BIT-magento-2020-9591, GHSA-w7rh-9w5v-rwqj.