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java/ql/src/Security/CWE/CWE-730/RegexInjection.qhelp

@@ -25,7 +25,7 @@ The following example shows an HTTP request parameter that is used to construct
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 In the first case the user-provided regex is not escaped.
-If a malicious user provides a regex that has exponential worst case performance,
+If a malicious user provides a regex whose worst-case performance is exponential,
 then this could lead to a Denial of Service.
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