CVE-2021-25931 is a Cross-Site Request Forgery (CSRF) vulnerability affecting OpenNMS Horizon and Meridian versions, specifically at the /opennms/admin/userGroupView/users/updateUser endpoint. This flaw allows an attacker to trick an authenticated administrator into unknowingly assigning the ROLE_ADMIN security role to a normal user, effectively escalating privileges. With a CVSS score of 8.8 (High), this vulnerability has a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0, < 27.1.1CPE matchmatch criteria | cpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:* | ||
>= 2015.1.0, < 2019.1.19CPE matchmatch criteria | cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:* | ||
>= 2020.1.0, < 2020.1.7CPE matchmatch criteria | cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.