Organizations with external-facing Atlassian Confluence products should move to mitigate the risks as appropriate to their risk assessment framework. Since no workaround is currently available, removing Internet accessibility from on-premise Confluence products or simply deactivating these products are the only known solutions at this time.

Due to the complexity of modern computing systems, zero-day exploitations in the wild are increasingly likely in any configuration and deployment. A defense-in-depth strategy with robust post-exploitation capabilities, such as the MDR and Threat Hunting services offered by Binary Defense, is necessary in order to properly secure IT assets in the modern threat environment.

https://thehackernews.com/2022/06/hackers-exploiting-unpatched-critical.html

Zero-Day Exploitation of Atlassian Confluence

https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html