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, leading to resultant weaknesses.
| 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) |