CVE-2021-37708: Command injection in mail agent settings

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-08-16 · updated 2026-06-17
Weakness: CWE-77

Description

Shopware is an open source eCommerce platform. Versions prior to 6.4.3.1 contain a command injection vulnerability in mail agent settings. Version 6.4.3.1 contains a patch. As workarounds for older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin.

Affected products

shopware: from 6.1.0 before 6.4.3.1 — fixed in 6.4.3.1

How to fix

Upgrade to a fixed version: shopware 6.4.3.1. Check the vendor advisory for mitigations.

References

https://github.com/shopware/platform/commit/82d8d1995f6ce9054323b2c3522b1b3cf04853aa
https://github.com/shopware/platform/security/advisories/GHSA-xh55-2fqp-p775
https://github.com/shopware/platform/commit/82d8d1995f6ce9054323b2c3522b1b3cf04853aa
https://github.com/shopware/platform/security/advisories/GHSA-xh55-2fqp-p775

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