XML External Entity Processing Vulnerability in Apache POI
CVE-2019-12415

5.5MEDIUM

Key Information:

Vendor
Apache
Status
Apache Poi
Vendor
CVE Published:
23 October 2019

Summary

Apache POI versions up to 4.1.0 are susceptible to an XML External Entity (XXE) processing vulnerability when using the XSSFExportToXml tool for converting user-provided Microsoft Excel documents. A specially crafted Excel file can be exploited by an attacker to read arbitrary files from the local filesystem or access sensitive data within internal network resources. This vulnerability highlights the importance of securing the handling of XML input in parsing libraries used with user-generated content.

Affected Version(s)

Apache POI Apache POI up to 4.1.0

References

https://lists.apache.org/thread.html/2ac0327748de0c2b3c1c...
mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/895164e03a3c32744906...
mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/d88b8823867033514d7e...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.