Is CVE-2021-4284 in the CISA KEV catalog?

No. CVE-2021-4284 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-4284?

CVE-2021-4284 has a CVSS v3 base score of 3.5 (LOW).

What is the EPSS score for CVE-2021-4284?

CVE-2021-4284 has an EPSS score of 0.93% (56th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-4284?

Upgrade htmlformentryui to 2.0.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-4284

LOW

3.5

CVSS v3

NVD

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.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

htmlformentryuiNVD

Affected:< 2.0.0Fixed in:2.0.0CVE-2021-4284derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Exploit Intelligence

0.93%probability of exploitation in 30 days

56thpercentile

Moderate risk: more likely to be exploited than 56% of all known CVEs.

References

Patch2

Vendor Advisory1

issues.openmrs.org

Third-Party Advisory3

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.