Update security policy

Author: jlb6740

CONTRIBUTING.md

@@ -10,3 +10,8 @@ For more information about contributing to this project you can consult the
 [Code of Conduct]: CODE_OF_CONDUCT.md
 [Organizational Code of Conduct]: ORG_CODE_OF_CONDUCT.md
 [online documentation]: https://bytecodealliance.github.io/wasmtime/contributing.html
+
+# Security
+
+If you think you have found a security issue in WasmScore, please file a github issue with details, reproducible steps, and a clearly defined impact.
+Once an issue is reported, we will assess, respond, and priortize a solution. In the case that WasmScore has planned updates at a regular time candence, the fix of a security vulnerability may warrant an intermediate release of WasmScore depending on the severity of the vulnerability.