CVE-2019-12799

Name: CVE-2019-12799
Creator: NVD / NIST
Published: 2019-06-13T20:29:00.173+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 54.68%

Last modified Jun 17, 2026

CVE-2019-12799 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In createInstanceFromNamedArguments in Shopware through 5.6.x, a crafted web request can trigger a PHP object instantiation vulnerability, which can result in an arbitrary deserialization if the right class is instantiated. An attacker can leverage this deserialization to achieve remote code execution. EPSS estimates a 54.68% chance of exploitation in the next 30 days.

Description

In createInstanceFromNamedArguments in Shopware through 5.6.x, a crafted web request can trigger a PHP object instantiation vulnerability, which can result in an arbitrary deserialization if the right class is instantiated. An attacker can leverage this deserialization to achieve remote code execution. NOTE: this issue is a bypass for a CVE-2017-18357 whitelist patch.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

54.68%

98.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Shopware	Shopware	<= 5.6.0

References

https://github.com/rapid7/metasploit-framework/pull/11828Issue Tracking, Patch, Third Party Advisory
https://github.com/rapid7/metasploit-framework/pull/11828Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Jun 13, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12799?

How severe is CVE-2019-12799?

CVE-2019-12799 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 54.68% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12799?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12799?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST