How to fix “XPath Injection” in c# asp.net?

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Method CreateExchangeTb() gets user input from the currencyRow element. This element’s value then flows through the code without being properly sanitized or validated, and is eventually used in an XPath query.

C#

currencyID =
currencyRow["GeniCurrencyCode"].ToString();
 .
 .

 XPathNavigator rateNode =
exchangeNode.SelectSingleNode(string.Format("Rate[@Code='{0}' and
@ForecastValue='{1}']", currencyID, strYear));

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Can you please suggest how to fix XPath Injection issue ?

Posted 28-May-15 17:55pm

praveen_07

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_Asif_ · Answer 1 · 2015-05-28T18:31:00

Solution 1

Check this XPATH Injection[^]. They have briefly explain the mechanism

Posted 28-May-15 18:31pm

_Asif_