CVE-2021-23463

XML External Entity (XXE) Injection

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.

Affected

com.h2database:h2

CVSS v3.1 NVD

9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v3.1 SNYK

8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS v2.0 NVD

6.4 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:P

EPSS

2.79% chance of exploitation in the next 30 days, 86th percentile

Published

2021-12-10

Updated

2024-09-17

Proof-of-concept exploits (1)

• https://snyk.io/vuln/SNYK-JAVA-COMH2DATABASE-1769238

Security advisories

• h2database/h2database/issues/3195
• advisories/GHSA-7rpj-hg47-cx62
• https://www.oracle.com/security-alerts/cpuapr2022.html

References

• CVE Record
• NVD entry