Known CVE

Apache Solr DataImportHandler <8.2.0 - Remote Code Execution

Apache Solr is vulnerable to remote code execution vulnerabilities via the DataImportHandler, an optional but popular module to pull in data from databases and other sources. The module has a feature in which the whole DIH configuration can come from a request's "dataConfig" parameter. The debug mode of the DIH admin screen uses this to allow convenient debugging / development of a DIH config. Since a DIH config can contain scripts, this parameter is a security risk.