How severe is CVE-2020-28409?

CVE-2020-28409 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-28409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-28409?

CVE-2020-28409 affects Dundas Dundas Bi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-28409?

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

When was CVE-2020-28409 published?

CVE-2020-28409 was published on 2020-11-10 and last updated on 2026-06-17.

CVE-2020-28409

CVE-2020-28409 is a medium-severity vulnerability in Dundas Dundas Bi with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Dundas Dundas Bi
Published: 2020-11-10
Last modified: 2026-06-17

Description

The server in Dundas BI through 8.0.0.1001 allows XSS via addition of a Component (e.g., a button) when events such as click, hover, etc. occur.

Frequently asked questions

What is CVE-2020-28409?: The server in Dundas BI through 8.0.0.1001 allows XSS via addition of a Component (e.g., a button) when events such as click, hover, etc. occur.
How severe is CVE-2020-28409?: CVE-2020-28409 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-28409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-28409?: CVE-2020-28409 affects Dundas Dundas Bi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-28409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-28409 published?: CVE-2020-28409 was published on 2020-11-10 and last updated on 2026-06-17.

References

https://mattschmidt.net/2020/11/10/dundas-persistent-xss/

Affected products (1)

cpe:2.3:a:dundas:dundas_bi:*:*:*:*:*:*:*:*

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