[ 
https://issues.apache.org/jira/browse/WW-5083?focusedWorklogId=465576&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-465576
 ]

ASF GitHub Bot logged work on WW-5083:
--------------------------------------

                Author: ASF GitHub Bot
            Created on: 03/Aug/20 07:43
            Start Date: 03/Aug/20 07:43
    Worklog Time Spent: 10m 
      Work Description: salcho commented on a change in pull request #428:
URL: https://github.com/apache/struts/pull/428#discussion_r464245596



##########
File path: 
core/src/main/java/org/apache/struts2/interceptor/FetchMetadataInterceptor.java
##########
@@ -73,15 +76,31 @@ public String intercept(ActionInvocation invocation) throws 
Exception {
             return invocation.invoke();
         }
 
-        logger.atDebug().log(
-            "Fetch metadata rejected cross-origin request to %s",
-            contextPath
-        );
+        LOG.debug("Fetch metadata rejected cross-origin request to [{}]", 
contextPath);

Review comment:
       Hi,
   
   I think you guys know better what log level is more appropriate for Struts 
devs. What I can tell you is that this code is not expected to reject many 
requests under normal circumstances, as every time this happens an endpoint is 
being fetched cross-origin, which indicates a potential CSRF attack more often 
than not and developers are expected to add endpoints that are exposed 
cross-origin to the exemption list. 
   
   That is to say: we wouldn't really expect this log statement to be hit to 
the point of flooding the logs.




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 465576)
    Time Spent: 4h 20m  (was: 4h 10m)

> Fetch Metadata support
> ----------------------
>
>                 Key: WW-5083
>                 URL: https://issues.apache.org/jira/browse/WW-5083
>             Project: Struts 2
>          Issue Type: New Feature
>          Components: Core Interceptors
>            Reporter: Santiago Diaz
>            Priority: Major
>             Fix For: 2.6
>
>          Time Spent: 4h 20m
>  Remaining Estimate: 0h
>
> We'd like to add built-in Fetch Metadata support to Struts2 to provide a 
> simple security mechanism that developers can use to protect against 
> Cross-Site Request Forgery vulnerabilities



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