How severe is CVE-2020-17454?

CVE-2020-17454 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-17454 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-17454?

CVE-2020-17454 affects Wso2 Api Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-17454?

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

When was CVE-2020-17454 published?

CVE-2020-17454 was published on 2020-10-21 and last updated on 2026-06-17.

CVE-2020-17454

CVE-2020-17454 is a medium-severity vulnerability in Wso2 Api Manager with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Wso2 Api Manager
Published: 2020-10-21
Last modified: 2026-06-17

Description

WSO2 API Manager 3.1.0 and earlier has reflected XSS on the "publisher" component's admin interface. More precisely, it is possible to inject an XSS payload into the owner POST parameter, which does not filter user inputs. By putting an XSS payload in place of a valid Owner Name, a modal box appears that writes an error message concatenated to the injected payload (without any form of data encoding). This can also be exploited via CSRF.

Frequently asked questions

What is CVE-2020-17454?: WSO2 API Manager 3.1.0 and earlier has reflected XSS on the "publisher" component's admin interface. More precisely, it is possible to inject an XSS payload into the owner POST parameter, which does not filter user inputs. By putting an XSS payload in place of a valid Owner Name, a modal box appears that writes an error message concatenated to the injected payload (without any form of data encoding). This can also be exploited via CSRF.
How severe is CVE-2020-17454?: CVE-2020-17454 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-17454 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-17454?: CVE-2020-17454 affects Wso2 Api Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-17454?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-17454 published?: CVE-2020-17454 was published on 2020-10-21 and last updated on 2026-06-17.

References

https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2020-0843

Affected products (1)

cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*

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