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Harden FormatterProfileReader against XXE and entity expansion attacks#400
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Summary
SAXParserFactoryinFormatterProfileReaderto prevent XXE (CWE-611) and billion-laughs entity expansion (CWE-776) attacksFixes #399
Test plan
testXXEAttackIsBlocked— verifies external entity payloads are rejected withIOExceptiontestBillionLaughsAttackIsBlocked— verifies entity expansion payloads are rejected withIOExceptiontestFormatterProfileReaderTwoProfilesandtestFormatterProfileReaderOneProfilestill pass