CVE-2023-0871
An XML External Entity injection vulnerability
- Published
- Updated
- Reserved
- Assigned by
- OpenNMS
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| OpenNMSCNA (assigner) | 3.1 | Medium5.4 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L |
| NVDNVD · Modified | 3.1 | Medium6.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.55% · top 54% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Weakness
Affected products
- affected 31.0.8 – < 32.0.2
- unknown < 31.0.8
- affected 2023.0.0 – < 2023.1.6
- affected 2022.0.0 – < 2022.1.19
- affected 2021.0.0 – < 2021.1.30
- affected 2020.0.0 – < 2020.1.38
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.opennms.core:org.opennms.core.xmlGHSA-2qc8-r663-v864 (opens in a new tab)
What to do
Solution: Upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer.
References (2)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-2qc8-r663-v864 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-0871)Record last updated .