How severe is CVE-2020-9390?

CVE-2020-9390 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-2020-9390 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9390?

CVE-2020-9390 affects Squaredup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9390?

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

When was CVE-2020-9390 published?

CVE-2020-9390 was published on 2021-02-03 and last updated on 2026-06-17.

CVE-2020-9390

CVE-2020-9390 is a medium-severity vulnerability in Squaredup 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% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Squaredup
Published: 2021-02-03
Last modified: 2026-06-17

Description

SquaredUp allowed Stored XSS before version 4.6.0. A user was able to create a dashboard that executed malicious content in iframe or by uploading an SVG that contained a script.

Frequently asked questions

What is CVE-2020-9390?: SquaredUp allowed Stored XSS before version 4.6.0. A user was able to create a dashboard that executed malicious content in iframe or by uploading an SVG that contained a script.
How severe is CVE-2020-9390?: CVE-2020-9390 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-2020-9390 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9390?: CVE-2020-9390 affects Squaredup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9390?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9390 published?: CVE-2020-9390 was published on 2021-02-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:squaredup:squaredup:*:*:*:*:*:*:*:*

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