CVE-2024-42355 is a high-severity (CVSS 8.3) CWE-1336 vulnerability in shopware/core. O3 Security confirms whether CVE-2024-42355 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Shopware vulnerable to Server Side Template Injection in Twig using deprecation silence tag
Real-World Exposure
shopware/core🐘shopware/platform🐘shopware/platform🐘shopware/coreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
Shopware, an open ecommerce platform, has a new Twig Tag sw_silent_feature_call which silences deprecation messages while triggered in this tag. Prior to versions 6.6.5.1 and 6.5.8.13, it accepts as parameter a string the feature flag name to silence, but this parameter is not escaped properly and allows execution of code. Update to Shopware 6.6.5.1 or 6.5.8.13 to receive a patch. For older versions of 6.2, 6.3, and 6.4, corresponding security measures are also available via a plugin.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | shopware/core | all versions | 6.5.8.13 |
| 🐘Packagist | shopware/platform | all versions | 6.5.8.13 |
| 🐘Packagist | shopware/platform | ≥ 6.6.0.0&&< 6.6.5.1 | 6.6.5.1 |
| 🐘Packagist | shopware/core | ≥ 6.6.0.0&&< 6.6.5.1 | 6.6.5.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for shopware/core. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update shopware/core to 6.5.8.13 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-42355 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2024-42355 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2024-42355. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2024-42355 in your dependencies?
O3 detects CVE-2024-42355 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.