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CVE-2023-0868

21
FAUCET Score

CVE-2023-0868 is a reflected cross-site scripting vulnerability in OpenNMS Meridian and Horizon, specifically affecting graph results. This flaw could enable an attacker to steal session cookies. The vulnerability has a CVSS score of 6.1 (Medium), indicating it can be exploited over a network with low attack complexity, requiring user interaction, and potentially leading to low confidentiality and integrity impacts. While no active exploitation, public exploits, or significant community discussion have been observed, users are advised to upgrade to Meridian 2023.1.0+ or Horizon 31.0.4+ and ensure these systems are not directly exposed to the internet.

Impacted Technologies

VendorProductVersion(s)CPE
< 31.0.4CPE matchmatch criteria
cpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:*
< 2023.1.0CPE matchmatch criteria
cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.5
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 38th percentile among its peer group of 26,208 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.opennms:opennms-webappFixed in: 31.0.4

Vendor Advisories (1)

mavenGHSA-g57g-rvpg-2f2cmedium

OpenNMS Meridian and Horizon vulnerable to Cross-site Scripting

Feb 23, 2023

References

docs.opennms.com / meridian/2022/releasenotes/changelog.html
Release Notes
github.com / OpenNMS/opennms/pull/5740
PatchVendor Advisory