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https://issues.apache.org/jira/browse/WW-5294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17700615#comment-17700615
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Erica Kane commented on WW-5294:
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Yes, we have quite a few Actions already... :)
I will say that it was very difficult to get the warning. We should have gotten
them on other pages that had {{s:textfield}} out there, which intuitively
strikes me as far more risky. I had an interesting day hunting all the
possibilities down.
> s:url tag usage in a public page triggers a warning to not expose JSP pages
> directly
> -------------------------------------------------------------------------------------
>
> Key: WW-5294
> URL: https://issues.apache.org/jira/browse/WW-5294
> Project: Struts 2
> Issue Type: Bug
> Affects Versions: 6.1.2
> Environment: Ubuntu 20, Java 8, Tomcat 9
> Reporter: Erica Kane
> Priority: Major
> Fix For: 6.2.0
>
>
> I have a number of public pages that use the {{<s:a>}} tags with no issues.
> But one page uses an {{<s:url>}} tag, and every time it is visited I get a
> warning on our logs the Action invocation context is null, and that JSP pages
> should not be exposed directly. This is an informational page only, and I
> can't think why the URL tag is unsafe to use while the a tag is safe. I am
> assuming this is a bug, but of course if there is an issue with the URL tag
> on a public page I would like to know.
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