Plugin Rules allow you to hide or change the severity of any given plugin. In addition, you can limit rules to a specific host or specific timeframe. From this page you can view, create, edit, and delete your rules.
The Plugin Rules option provides a facility to create a set of rules that dictate the behavior of certain plugins related to any scan performed. You can base a rule on the Host (or all hosts), Plugin ID, an optional Expiration Date, and manipulation of Severity.
This allows you to re-prioritize the severity of plugin results to better account for your organization’s security posture and response plan.
Example Plugin Rule
Plugin ID: 79877
Expiration Date: 12/31/2016
This rule is created for scans performed on IP address 192.168.0.6. Once saved, this Plugin Rule changes the default severity of plugin ID 79877 (CentOS 7: rpm (CESA-2014:1976) to a severity of low until 12/31/2016. After 12/31/2016, the results of plugin ID 79877 will return to its critical severity.