In Healthwatch v2.3.1, there is a CVE present within the version of grafana used. The version of grafana that his version of healthwatch uses is 10.1.10.
More info on this CVE can be found here:
This has been fixed in Grafana in 10.3.10 / 10.4.9 / 11.0.5 / 11.1.6 / 11.2.1. The next release of Healthwatch will include grafana 10.3.10