Is CVE-2026-40283 in the CISA KEV catalog?

No. CVE-2026-40283 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-40283?

CVE-2026-40283 has a CVSS v3 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2026-40283?

CVE-2026-40283 has an EPSS score of 0.20% (11th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40283?

Upgrade wegia to 3.6.10 or later.

CVE & CISA-KEV Catalog

CVE-2026-40283

MEDIUM

6.8

CVSS v3

NVD

Description

WeGIA is a web manager for charitable institutions. In versions prior to 3.6.10, a Stored Cross-Site Scripting (XSS) vulnerability allows an authenticated user to inject malicious JavaScript via the "Nome" field in the "Informações Pacientes" page. The payload is stored and executed when the patient information is viewed. Version 3.6.10 fixes the issue.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

wegiaNVD

Affected:< 3.6.10Fixed in:3.6.10CVE-2026-40283derived 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 RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.20%probability of exploitation in 30 days

11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Exploit1

github.com

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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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 2026-04-27.