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codeql/javascript/ql/src/Security/CWE-079/Xss.ql
2020-10-20 12:00:02 +01:00

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/**
* @name Client-side cross-site scripting
* @description Writing user input directly to the DOM allows for
* a cross-site scripting vulnerability.
* @kind path-problem
* @problem.severity error
* @precision high
* @id js/xss
* @tags security
* external/cwe/cwe-079
* external/cwe/cwe-116
*/
import javascript
import semmle.javascript.security.dataflow.DomBasedXss::DomBasedXss
import DataFlow::PathGraph
from DataFlow::Configuration cfg, DataFlow::PathNode source, DataFlow::PathNode sink
where
(
cfg instanceof HtmlInjectionConfiguration or
cfg instanceof JQueryHtmlOrSelectorInjectionConfiguration
) and
cfg.hasFlowPath(source, sink)
select sink.getNode(), source, sink,
sink.getNode().(Sink).getVulnerabilityKind() + " vulnerability due to $@.", source.getNode(),
"user-provided value"