CVE-2023-2183: Broken Access Control in Alert manager | Grafana Labs

### Summary Grafana allows an attacker in the Viewer role, send alerts by API Alert - Test. The option is not available from the user panel UI for in the Viewer role. **Reason for the error**: The API does not check access to this function and allows it by users with the least rights, for example, the Viewer that does not see this option in the user panel. This enables malicious users to abuse the functionality by sending multiple alert messages (e-mail, slack, etc…), spamming users, prepare Phishing attack or blocked SMTP server / IP and automatically moved all message to spam folder, add to black list IP. ### Details The logged-in user, in the Viewer role, in the user panel, does not have access to the test option of sending an e-mail alert. View of the panel for the user in the Viewer role:  Admin role - View panel for admin role: ![image](https://user-images.github...

Grafana is an open-source platform for monitoring and observability. The option to send a test alert is not available from the user panel UI for users having the Viewer role. It is still possible for a user with the Viewer role to send a test alert using the API as the API does not check access to this function. This might enable malicious users to abuse the functionality by sending multiple alert messages to e-mail and Slack, spamming users, prepare Phishing attack or block SMTP server. Users may upgrade to version 9.5.3, 9.4.12, 9.3.15, 9.2.19 and 8.5.26 to receive a fix.