Impact
The newsletter double opt-in validation was not checked properly, and it was possible to skip the complete double opt in. process.
Patches
The problem has been fixed with 6.4.18.1
Workarounds
For older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version. Or disable the newsletter registration completely.
References
https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-01-2023?category=security-updates
Impact
The newsletter double opt-in validation was not checked properly, and it was possible to skip the complete double opt in. process.
Patches
The problem has been fixed with 6.4.18.1
Workarounds
For older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version. Or disable the newsletter registration completely.
References
https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-01-2023?category=security-updates