Server-side Template Injection (SSTI) in Shopware 6 (<= v6.4.20.0, v6.5.0.0-rc1 <= v6.5.0.0-rc4), affecting both shopware/core and shopware/platform GitHub repositories, allows remote attackers with access to a Twig environment without the Sandbox extension to bypass the validation checks in ShopwareCoreFrameworkAdapterTwigSecurityExtension and call any arbitrary PHP function and thus execute arbitrary code/commands via usage of fully-qualified names, supplied as array of strings, when referencing callables. Users are advised to upgrade to v6.4.20.1 to resolve this issue. This is a bypass of CVE-2023-22731.
The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Shopware | Shopware | 6.1.0 (including) | 6.4.20.0 (including) |
| Shopware | Shopware | 6.5.0.0-rc1 (including) | 6.5.0.0-rc1 (including) |
| Shopware | Shopware | 6.5.0.0-rc2 (including) | 6.5.0.0-rc2 (including) |
| Shopware | Shopware | 6.5.0.0-rc3 (including) | 6.5.0.0-rc3 (including) |