Plane is open-source project management software. Versions prior to 0.23 have insecure permissions in UserSerializer that allows users to change fields that are meant to be read-only, such as email. This can lead to account takeover when chained with another vulnerability such as cross-site scripting (XSS). Version 0.23 fixes the issue.
https://github.com/makeplane/plane/security/advisories/GHSA-cjh4-q763-cc48
https://github.com/makeplane/plane/commit/0a8cc24da505fd519fcc3c9d6b5e15bc7ce21b29