VULNERABILITY INTELLIGENCE

CVE-2017-12621

CVSS score9.8 CRITICAL
EPSS probability8.13%
CISA KEVNot currently listed
Published2017-09-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

During Jelly (xml) file parsing with Apache Xerces, if a custom doctype entity is declared with a "SYSTEM" entity with a URL and that entity is used in the body of the Jelly file, during parser instantiation the parser will attempt to connect to said URL. This could lead to XML External Entity (XXE) attacks in Apache Commons Jelly before 1.0.1.

Weakness classification

  • CWE-611: Improper Restriction of XML External Entity Reference

Primary references