Drawio before 18.1.2 is susceptible to server-side request forgery via the /service endpoint in jgraph/drawio. An attacker can possibly obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site.
View the template here CVE-2022-1815.yaml
References:
https://huntr.dev/bounties/6e856a25-9117-47c6-9375-52f78876902f/