In Jenkins before versions 2.44, 2.32.2 low privilege users were able to act on administrative monitors due to them not being consistently protected by permission checks (SECURITY-371).
https://jenkins.io/security/advisory/2017-02-01/
https://github.com/jenkinsci/jenkins/commit/6efcf6c2ac39bc5c59ac7251822be8ddf67ceaf8