How severe is CVE-2021-25932?

CVE-2021-25932 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-25932 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25932?

CVE-2021-25932 primarily affects Opennms Meridian. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-25932?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-25932 published?

CVE-2021-25932 was published on 2021-06-01 and last updated on 2026-06-17.

CVE-2021-25932

CVE-2021-25932 is a medium-severity vulnerability in Opennms Meridian with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Opennms Meridian
Published: 2021-06-01
Last modified: 2026-06-17

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 `userID` parameter. Due to this flaw an attacker could inject an arbitrary script which will be stored in the database.

Frequently asked questions

What is CVE-2021-25932?: 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 `userID` parameter. Due to this flaw an attacker could inject an arbitrary script which will be stored in the database.
How severe is CVE-2021-25932?: CVE-2021-25932 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-25932 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25932?: CVE-2021-25932 primarily affects Opennms Meridian. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-25932?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25932 published?: CVE-2021-25932 was published on 2021-06-01 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
cpe:2.3:a:opennms:opennms:*:*:*:*:*:*:*:*

More vulnerabilities in Opennms Meridian

CVE-2021-25931 — High (CVSS 8.8): In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions…
CVE-2021-3396 — High (CVSS 8.8): OpenNMS Meridian 2016, 2017, 2018 before 2018.1.25, 2019 before 2019.1.16, and 2020 before 2020.1.5, Horizon 1.2…
CVE-2023-0872 — High (CVSS 8.2): The Horizon REST API includes a users endpoint in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple…
CVE-2023-0870 — High (CVSS 8.1): A form can be manipulated with cross-site request forgery in multiple versions of OpenNMS Meridian and Horizon. This…
CVE-2020-11886 — High (CVSS 8.1): OpenNMS Horizon and Meridian allows HQL Injection in element/nodeList.htm (aka the NodeListController) via snmpParm or…
CVE-2023-40313 — High (CVSS 7.1): A BeanShell interpreter in remote server mode runs in OpenMNS Horizon versions earlier than 32.0.2 and in related…

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