Role-based Authorization Strategy Plugin was not requiring requests to its API be sent via POST, thereby opening itself to Cross-Site Request Forgery attacks. This allowed attackers to add administrator role to any user, or to remove the authorization configuration, preventing legitimate access to Jenkins.

Jenkins Role-based Authorization Strategy Plugin 587.v2872c41fa_e51 and earlier grants permissions even after they've been disabled.

An incorrect permission check in Jenkins Role-based Authorization Strategy Plugin 3.1 and earlier allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.

Jenkins Role-based Authorization Strategy Plugin 3.0 and earlier does not properly invalidate a permission cache when the configuration is changed, resulting in permissions being granted based on an outdated configuration.