How severe is CVE-2021-4289?

CVE-2021-4289 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-4289 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4289?

CVE-2021-4289 affects Openmrs Reference Application. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4289?

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

When was CVE-2021-4289 published?

CVE-2021-4289 was published on 2022-12-27 and last updated on 2026-06-17.

CVE-2021-4289

CVE-2021-4289 is a low-severity vulnerability in Openmrs Reference Application with a CVSS 3.x base score of 3.5. 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: Low (CVSS 3.x base score 3.5)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Openmrs Reference Application
Published: 2022-12-27
Last modified: 2026-06-17

Description

A vulnerability classified as problematic was found in OpenMRS openmrs-module-referenceapplication up to 2.11.x. Affected by this vulnerability is the function post of the file omod/src/main/java/org/openmrs/module/referenceapplication/page/controller/UserAppPageController.java of the component User App Page. The manipulation of the argument AppId leads to cross site scripting. The attack can be launched remotely. Upgrading to version 2.12.0 is able to address this issue. The name of the patch is 0410c091d46eed3c132fe0fcafe5964182659f74. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216883.

Frequently asked questions

What is CVE-2021-4289?: A vulnerability classified as problematic was found in OpenMRS openmrs-module-referenceapplication up to 2.11.x. Affected by this vulnerability is the function post of the file omod/src/main/java/org/openmrs/module/referenceapplication/page/controller/UserAppPageController.java of the component User App Page. The manipulation of the argument AppId leads to cross site scripting. The attack can be launched remotely. Upgrading to version 2.12.0 is able to address this issue. The name of the patch is 0410c091d46eed3c132fe0fcafe5964182659f74. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-216883.
How severe is CVE-2021-4289?: CVE-2021-4289 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-4289 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4289?: CVE-2021-4289 affects Openmrs Reference Application. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4289?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4289 published?: CVE-2021-4289 was published on 2022-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openmrs:reference_application:*:*:*:*:*:*:*:*

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