refs https://github.com/TryGhost/Ghost/security/advisories/GHSA-9gh8-wp53-ccc6
refs https://github.com/TryGhost/Toolbox/issues/465
- Bookshelf relations allows us to edit relational records by default, which was used liberally in the codebase.
- Not having a clear track record of editable relations left the model layer prone to triggering unwanted nested saves and created a vulnerability where members were able to edit newsletter settings.
- With explicit editable relations it's easier to keep track of relations having editable access to related records. Makes the relational data modification pattern safer to use too.
- Anyone running 5.x should update to 5.24.1
Credits: Dave McDaniel and other members of [Cisco Talos](https://talosintelligence.com/vulnerability_reports)
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