CVE-2019-8121

CVE-2019-8121 is a critical-severity vulnerability in Magento with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

An insecure component vulnerability exists in Magento 2.1 prior to 2.1.19, Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3. Magento 2 codebase leveraged outdated versions of JS libraries (Bootstrap, jquery, Knockout) with known security vulnerabilities.

Frequently asked questions

What is CVE-2019-8121?
An insecure component vulnerability exists in Magento 2.1 prior to 2.1.19, Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3. Magento 2 codebase leveraged outdated versions of JS libraries (Bootstrap, jquery, Knockout) with known security vulnerabilities.
How severe is CVE-2019-8121?
CVE-2019-8121 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-8121 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-8121?
CVE-2019-8121 primarily affects Magento. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-8121?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-8121 published?
CVE-2019-8121 was published on 2019-11-05 and last updated on 2026-06-17.

References

Affected products (2)

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