CVE-2019-12799
Shopware Insecure Deserialization Vulnerability
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2019-12799- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AC:L/AV:N/A:N/C:H/I:N/PR:L/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2022-5158
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.
- Record
EUVD-2022-5158- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AC:L/AV:N/A:N/C:H/I:N/PR:L/S:U/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rf8f-hqjv-986p
Shopware Insecure Deserialization Vulnerability
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.
- Record
GHSA-rf8f-hqjv-986p- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2019-12799- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-502
- Updated
- 2026-11-02
OSVGHSA-rf8f-hqjv-986p
Shopware Insecure Deserialization Vulnerability
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.
- Record
GHSA-rf8f-hqjv-986p- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
shopware/shopwarePackagist |
5.3.0 to 5.6.0 | None known |
shopware/shopwarePackagist |
5.3.0 to 5.6.0, plus listed versions v5.3.4v5.3.5v5.3.6v5.3.7v5.4.0 Show 22 moreShow lessv5.4.0-RC1v5.4.1v5.4.2v5.4.3v5.4.4v5.4.5v5.4.6v5.5.0v5.5.0-BETA1v5.5.0-RC1v5.5.1v5.5.10v5.5.2v5.5.3v5.5.4v5.5.5v5.5.6v5.5.7v5.5.8v5.5.9v5.6.0v5.6.0-RC1 |
None known |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | Shopware createInstanceFromNamedArguments PHP Object Instantiation RCE | 2019-05-09 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Metasploit, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-12799 is a medium vulnerability (CVSS 6.5) in Shopware, published June 13, 2019. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 54.1%, the 99th percentile. No source names a fixed version.
References
github.com/rapid7/metasploit-framework/pull/11828
nvd.nist.gov/vuln/detail/CVE-2019-12799
web.archive.org/web/20171112153855/https://blog.ripstech.com/2017/shopware-php-object-instantiation-to-blind-xxe