What’s Vulnerable › Vulnerabilities

CVE-2017-18357

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 27.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-01-15 · updated 2026-06-17
• Weakness: CWE-610

Description

Shopware before 5.3.4 has a PHP Object Instantiation issue via the sort parameter to the loadPreviewAction() method of the Shopware_Controllers_Backend_ProductStream controller, with resultant XXE via instantiation of a SimpleXMLElement object.

Affected products

• shopware: before 5.3.4 — fixed in 5.3.4

How to fix

Upgrade to a fixed version: shopware 5.3.4. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/152995/Shopware-createInstanceFromNamedArguments-PHP-Object-Instantiation.html
• https://blog.ripstech.com/2017/shopware-php-object-instantiation-to-blind-xxe/
• https://demo.ripstech.com/projects/shopware_5.3.3
• http://packetstormsecurity.com/files/152995/Shopware-createInstanceFromNamedArguments-PHP-Object-Instantiation.html
• https://blog.ripstech.com/2017/shopware-php-object-instantiation-to-blind-xxe/
• https://demo.ripstech.com/projects/shopware_5.3.3

Get alerted when CVE-2017-18357 or the next vulnerability affects your stack