Shopware improper mail validation vulnerabilityGHSA-gh66-fp7j-98v5
MEDIUMFix: shopware5/shopware@39cc714GHSA-gh66-fp7j-98v5 is a medium-severity (CVSS 5.3) CWE-754 vulnerability in shopware/shopware. A fix is available for shopware/shopware — see the affected versions and patch details below.
Exploitation Status
No confirmed exploitation observed yet
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for GHSA-gh66-fp7j-98v5.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
shopware/shopwareReal-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
Impact
The mail validation in the registration process had some flaws, so it was possible to construct different mail addresses, that in the end result in the same address, which is shared by multiple accounts.
Patches
We recommend updating to the current version 5.7.18. You can get the update to 5.7.18 regularly via the Auto-Updater or directly via the release page. https://github.com/shopware5/shopware/releases/tag/v5.7.18
For older versions you can use the Security Plugin: https://store.shopware.com/en/swag575294366635f/shopware-security-plugin.html
References
https://docs.shopware.com/en/shopware-5-en/security-updates/security-update-06-2023
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | shopware/shopware | ≥ 5.1.4&&< 5.7.18 | 5.7.18composer require shopware/shopware:^5.7.18 |
Affected Products
shopwareshopwareDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for shopware/shopware, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update shopware/shopware to 5.7.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gh66-fp7j-98v5 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.
Frequently Asked Questions
Is GHSA-gh66-fp7j-98v5 in your dependencies?
Find it across Packagist, including transitive dependencies.