Hi,
There are no know security issues within the latest patch 4.26.2. All advisories were patched a month ago with version 4.26.2 as was kindly reported by wpscan team before the advisories were published, you can check it in the changelog. We worked together with them for the proper actions.
Additionally here is the wpscan report marked as fixed and CVE-2023-1420
Updating to 4.26.2 resolves all known threats.