Summary
Ghost: Archived Offers can be Redeemed
Advisory details
Impact
A missing validation check allowed users to redeem subscription offers that were no longer active.
Vulnerable versions
This vulnerability is present in Ghost from v4.22.0 up to v6.54.0.
Patches
v6.54.1 contains a fix for this issue.
How to update
For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.
If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.
References
Ghost thanks Pedro Pinho for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at security@ghost.org.
References
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