Headline
GHSA-2w46-vq8h-98vh: Shopware 6's password recovery link does not expire after email change
Summary
When a customer changes their email address after requesting a password reset, the old password reset link (tied to the previous email) remains valid. An attacker with access to the old email inbox is potentially able to reset the customer’s password even after the user changes their email address.
PoC
- Log in to a Shopware account.
- Request a password reset for your current email address.
- Copy the password reset link but do not open it.
- Log back into your account.n
- Navigate to Account Settings → Email and change your email address.
- Use the previously copied reset link (from before the email change).
- The system allows password change using the old link.
Impact
Reproduced on Stable 6.6.10.7 and trunk.
Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.