How severe is CVE-2021-23463?

This vulnerability has a severity rating of CRITICAL with a CVSS score of 9.1 out of 10.

What type of vulnerability is CVE-2021-23463?

This is classified as CWE-611, which is a common weakness in software security.

CVE-2021-23463 - CRITICAL Severity | CVSS 9.1

Vulnerability Description

The package com.h2database:h2 from 1.4.198 and before 2.0.202 are vulnerable to XML External Entity (XXE) Injection via the org.h2.jdbc.JdbcSQLXML class object, when it receives parsed string data from org.h2.jdbc.JdbcResultSet.getSQLXML() method. If it executes the getSource() method when the parameter is DOMSource.class it will trigger the vulnerability.

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