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6 changes: 6 additions & 0 deletions my-vulnerable-code.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
function endsWith(x, y) {

let index = x.lastIndexOf(y);
return x.lastIndexOf(y) === x.length - y.length;

Check failure

Code scanning / CodeQL

Incorrect suffix check

This suffix check is missing a length comparison to correctly handle lastIndexOf returning -1.

}