Log in Start free

Vulnerability · Published May 20, 2021 · Assigned by Mend

CVE-2021-25933

Medium 4.8

In plain English

A medium-severity cross-site scripting in OpenNMS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.8Medium
Exploit odds (30 days)1.0%top 35.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenorg.opennms:opennms27.1.1GHSA-jjhw-5mxp-2g2q

Affected products (as reported)

VendorProductVersions
n/a OpenNMS opennms-1-0-stable,opennms-1.0.1 through opennms-27.1.0-1,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

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

References