How severe is CVE-2021-4284?

CVE-2021-4284 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-2021-4284 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-2021-4284?

CVE-2021-4284 affects Openmrs Htmlformentryui. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4284?

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

When was CVE-2021-4284 published?

CVE-2021-4284 was published on 2022-12-27 and last updated on 2026-06-17.

CVE-2021-4284

CVE-2021-4284 is a low-severity vulnerability in Openmrs Htmlformentryui 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% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Openmrs Htmlformentryui
Published: 2022-12-27
Last modified: 2026-06-17

Description

A vulnerability classified as problematic has been found in OpenMRS HTML Form Entry UI Framework Integration Module up to 1.x. This affects an unknown part. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 2.0.0 is able to address this issue. The name of the patch is 811990972ea07649ae33c4b56c61c3b520895f07. It is recommended to upgrade the affected component. The identifier VDB-216873 was assigned to this vulnerability.

Frequently asked questions

What is CVE-2021-4284?: A vulnerability classified as problematic has been found in OpenMRS HTML Form Entry UI Framework Integration Module up to 1.x. This affects an unknown part. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 2.0.0 is able to address this issue. The name of the patch is 811990972ea07649ae33c4b56c61c3b520895f07. It is recommended to upgrade the affected component. The identifier VDB-216873 was assigned to this vulnerability.
How severe is CVE-2021-4284?: CVE-2021-4284 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-2021-4284 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-2021-4284?: CVE-2021-4284 affects Openmrs Htmlformentryui. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4284?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4284 published?: CVE-2021-4284 was published on 2022-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openmrs:htmlformentryui:*:*:*:*:*:openmrs:*:*

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →