WW-5373 Adds a section about report action
diff --git a/source/core-developers/csp-interceptor.md b/source/core-developers/csp-interceptor.md
index d112683..2317565 100644
--- a/source/core-developers/csp-interceptor.md
+++ b/source/core-developers/csp-interceptor.md
@@ -31,6 +31,14 @@
is going to be enforced.
- `reportUri` - an uri under, which the violations have to be reported.
+## Report action
+
+To receive reports about violations against CSP an abstract `CspReportAction` action has been created, which you can
+extend to process the reports. When extending the action you must implement `processReport(String)` to process the report.
+Read JavaDoc of the action for more details.
+
+> Note: the action must always return an HTTP status `204`.
+
## Action aware
Since Struts 6.2.0 it is possible to configure the CSP interceptor by providing the an instance of `CspSettings` interface.
