CVE-2021-25933

Description

In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to Stored Cross-Site Scripting, since the function `validateFormInput()` performs improper validation checks on the input sent to the `groupName` and `groupComment` parameters. Due to this flaw, an authenticated attacker could inject arbitrary script and trick other admin users into downloading malicious files which can cause severe damage to the organization using opennms.

How to fix CVE-2021-25933

To remediate CVE-2021-25933, upgrade the affected package to a fixed version below.

• —upgrade to 27.1.1 or later

Is CVE-2021-25933 being exploited?

Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• >= 1.0.0, < 27.1.1

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-25933
• PATCHgithub.com/OpenNMS/opennms
• WEBgithub.com/OpenNMS/opennms/commit/8a97e6869d6e49da18b208c837438ace80049c01,
• WEBgithub.com/OpenNMS/opennms/commit/8a97e6869d6e49da18b208c837438ace80049c01%2C