How severe is CVE-2019-20443?

CVE-2019-20443 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-20443 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20443?

CVE-2019-20443 primarily affects Wso2 Api Manager. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20443?

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

When was CVE-2019-20443 published?

CVE-2019-20443 was published on 2020-01-28 and last updated on 2026-06-17.

CVE-2019-20443

CVE-2019-20443 is a medium-severity vulnerability in Wso2 Api Manager with a CVSS 3.x base score of 4.8. 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 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Wso2 Api Manager
Published: 2020-01-28
Last modified: 2026-06-17

Description

An issue was discovered in WSO2 API Manager 2.6.0, WSO2 Enterprise Integrator 6.5.0, WSO2 IS as Key Manager 5.7.0, and WSO2 Identity Server 5.8.0. A potential stored Cross-Site Scripting (XSS) vulnerability in mediaType has been identified in the registry UI.

Frequently asked questions

What is CVE-2019-20443?: An issue was discovered in WSO2 API Manager 2.6.0, WSO2 Enterprise Integrator 6.5.0, WSO2 IS as Key Manager 5.7.0, and WSO2 Identity Server 5.8.0. A potential stored Cross-Site Scripting (XSS) vulnerability in mediaType has been identified in the registry UI.
How severe is CVE-2019-20443?: CVE-2019-20443 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-20443 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20443?: CVE-2019-20443 primarily affects Wso2 Api Manager. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20443?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-20443 published?: CVE-2019-20443 was published on 2020-01-28 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:wso2:api_manager:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:wso2:enterprise_integrator:6.5.0:*:*:*:*:*:*:*
cpe:2.3:a:wso2:identity_server:5.7.0:*:*:*:*:*:*:*
cpe:2.3:a:wso2:identity_server:5.8.0:*:*:*:*:*:*:*

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