FastAsyncWorldEdit (FAWE) is designed for efficient world editing. This vulnerability enables the attacker to select a region with the `Infinity` keyword (case-sensitive!) and executes any operation. This has a possibility of bringing the performing server down. This issue has been fixed in version 2.6.3.
https://github.com/IntellectualSites/FastAsyncWorldEdit/security/advisories/GHSA-whj9-m24x-qhhp
https://github.com/IntellectualSites/FastAsyncWorldEdit/releases/tag/2.6.3
https://github.com/IntellectualSites/FastAsyncWorldEdit/pull/2285