Thankfully XSS vulnerabilities are also very easy to recognize.Įcho "The value you entered is: ". In fact, if you simply write PHP in a way that feels intuitive, you will almost certainly write an XSS vulnerability into your code. XSS vulnerabilities are incredibly easy to write. ![]() So lets spend some time discussing XSS, what it is, how it is exploited and how to prevent XSS vulnerabilities. ![]() In an analysis that we did of 1599 WordPress plugin vulnerabilities reported over a 14 month period, we found the following distribution:Īs you can tell from the above graphic, if you are able to fully understand and eliminate just the XSS vulnerabilities in your PHP code, you will be writing 47% less vulnerabilities. Cross Site Scripting vulnerabilities are the most common vulnerability found in WordPress plugins by a significant margin.
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