Hi we are running this version and I am wondering as the plugins mentioned do not seem to exist. There are some that might be similar in name like virtual SAN Web Client but none exactly matching it.
Thinking about upgrading the VCSA to a patched version vCenter Server 6.5 Update 3p, build number 17994927 but not sure if it will play nice with our aging ESXi hosts which I am in the process of pushing forward to the last possible hardware compatible version anyway because of HelloKitty.
@NickDaGeekUK Thanks for posting the question. It would be ideal to patch to the latest patch vCenter Server 6.5 U3q (188.8.131.52000) Build 18499837 to address the latest Security Vulnerability described in https://www.vmware.com/security/advisories/VMSA-2021-0020.html, by upgrading to this patch you can address both Vulnerabilities (VMSA-2021-0010 & VMSA-2021-0020).
You may verify the ESXi host interoperability from link https://interopmatrix.vmware.com/#/Interoperability
Let us know if any additional support needed.