FeehiCMS version 2.1.1 fails to enforce server-side immutability for parameters that are presented to clients as "read-only." An authenticated attacker can intercept and modify the parameter in transit and the backend accepts the changes. This can lead to unintended username changes.
GHSA-qgc9-p7cj-jvh6: FeehiCMS fails to enforce server-side immutability
FeehiCMS 2.1.1 fails to enforce server-side immutability, allowing authenticated attackers to modify read-only parameters and change usernames.