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https://issues.apache.org/jira/browse/FLINK-2789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14936562#comment-14936562
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Stephan Ewen commented on FLINK-2789:
-------------------------------------
The servlet is part of the old web frontend, which will soon be removed. Should
be okay...
> Vulnerability to XSS attack due to printing HTML output
> -------------------------------------------------------
>
> Key: FLINK-2789
> URL: https://issues.apache.org/jira/browse/FLINK-2789
> Project: Flink
> Issue Type: Bug
> Reporter: Ted Yu
>
> In
> flink-clients/src/main/java/org/apache/flink/client/web/PlanDisplayServlet.java
> :
> {code}
> 113 writer.println(" // register the event handler
> for the 'run' button and activate zoom Buttons\n"
> 114 + " activateZoomButtons();"
> 115 + "
> $('#run_button').click(function () {\n" + "
> $('#run_button').remove();\n"
> 116 + " $.ajax( {" + "
> url: '/runJob'," + " data: { action: 'runsubmitted', id: '" + uid + "' },"
> 117 + " success: function () {
> alert('Job succesfully submitted');"
> 118 + (this.runtimeVisURL != null
> ? (" window.location = \"" + this.runtimeVisURL + "\"; },") : " },")
> {code}
> Printing HTML output induces XSS vulnerability
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