Merge branch '5.8.x' into 6.0.x

Closes gh-14106

docs/modules/ROOT/pages/features/authentication/index.adoc

@@ -8,4 +8,4 @@ Once authentication is performed we know the identity and can perform authorizat
 
 Spring Security provides built-in support for authenticating users.
 This section is dedicated to generic authentication support that applies in both Servlet and WebFlux environments.
-See the sections on authentication for xref:servlet/authentication/index.adoc#servlet-authentication[Servlet] and WebFlux for details on what is supported for each stack.
+Refer to the sections on authentication for xref:servlet/authentication/index.adoc#servlet-authentication[Servlet] and xref:servlet/authentication/index.adoc[WebFlux] for details on what is supported for each stack.

docs/modules/ROOT/pages/features/authorization/index.adoc

@@ -8,7 +8,9 @@ Spring Security provides https://en.wikipedia.org/wiki/Defense_in_depth_(computi
 [[authorization-request]]
 == Request Based Authorization
 
-Spring Security provides authorization based upon the request for both xref:servlet/authorization/index.adoc[Servlet] and WebFlux environments.
+Spring Security provides authorization based upon the request for both xref:servlet/authorization/authorize-http-requests.adoc[Servlet] and xref:reactive/authorization/authorize-http-requests.adoc[WebFlux] environments.
 
 [[authorization-method]]
 == Method Based Authorization
+
+Spring Security provides authorization based on the method invocation for both xref:servlet/authorization/method-security.adoc[Servlet] and xref:reactive/authorization/method.adoc[WebFlux] environments.

docs/modules/ROOT/pages/features/integrations/index.adoc

@@ -4,5 +4,4 @@
 
 Spring Security provides integrations with numerous frameworks and APIs.
 In this section, we discuss generic integrations that are not specific to Servlet or Reactive environments.
-To see specific integrations, refer to the xref:servlet/integrations/index.adoc[Servlet] and xref:servlet/integrations/index.adoc[Reactive] Integrations sections.
-// FIXME add link to reactive integrations
+To see specific integrations, refer to the xref:servlet/integrations/index.adoc[Servlet] and xref:reactive/integrations/cors.adoc[Reactive] Integrations sections.