VULNERABILITY INTELLIGENCE

CVE-2023-0871

CVSS score5.4 MEDIUM
EPSS probability0.55%
CISA KEVNot currently listed
Published2023-08-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L

Description

XXE injection in /rtc/post/ endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to XML external entity (XXE) injection, which can be used for instance to force Horizon to make arbitrary HTTP requests to internal and external services. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Erik Wynter and Moshe Apelbaum for reporting this issue.

Weakness classification

  • security@opennms.com: CWE-611
  • nvd@nist.gov: CWE-611

Primary references