# Management Tool: XML Entity Issue

- Reference: PBI 327851
- Compliance Impacts: This enhancement is not a compliance or regulatory issue.
- Documentation: No document impact

## Summary

An external Document Type Declaration (DTD) was injected when content was built and a library deployed.

Potential security issue existed due to a DTD impacting content builds

Content starting with DTD, part of the package files impacting builds. Need to look at different LOB's to see if they need to be rebuilt with the Admin Tool. You would see this failure during auto selection.

Custom DTD's have been disabled; Disable custom document type definition parsing on the XML parsing class, e.g. by using XmlTextReader.ProhibitDtd = true or XmlReaderSettings.ProhibitDtd = true

## Technical Notes

## Implementation Notes

This feature requires an Expere Engine and a Requirements Editor Tool update.