CVE-2023-0872 | ROLE_REST can be used to escalate to ROLE_ADMIN via /rest/users

The Horizon REST API includes a users endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms is vulnerable to elevation of privilege. 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 for reporting this issue.

Published: 2023-08-14 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-0872 is rated Moderate Risk (63.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.48%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-0872

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-09 3.06% 3.48% +0.41%
2 2025-11-21 6.76% 3.06% -3.69%
3 2025-11-18 — 6.76% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-0872

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.2 3.1 HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.3 5.3 [email protected]
8.0 3.1 HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.1 5.9 [email protected]

Weakness enumeration for CVE-2023-0872

GitHub Security Advisory for CVE-2023-0872

GHSA-w5gq-xrrp-3fxf · Severity: high · Ecosystem: maven — OpenNMS privilege elevation vulnerability

Affected software / configurations for CVE-2023-0872

Vendor Product Version Raw CPE
opennms horizon >= 31.0.8, < 32.0.2 cpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:*
opennms meridian >= 2020.0.0, <= 2020.1.37 cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian >= 2021.0.0, <= 2021.1.29 cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian >= 2022.0.0, <= 2022.1.18 cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
opennms meridian >= 2023.0.0, <= 2023.1.5 cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*

References for CVE-2023-0872

cvelogic Threat Intelligence