How severe is CVE-2020-8788?

CVE-2020-8788 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-2020-8788 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8788?

CVE-2020-8788 affects Synaptivemedical Clearcanvas. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-8788?

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

When was CVE-2020-8788 published?

CVE-2020-8788 was published on 2020-02-07 and last updated on 2026-06-17.

CVE-2020-8788

CVE-2020-8788 is a medium-severity vulnerability in Synaptivemedical Clearcanvas 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% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Synaptivemedical Clearcanvas
Published: 2020-02-07
Last modified: 2026-06-17

Description

Synaptive Medical ClearCanvas ImageServer 3.0 Alpha allows XSS (and HTML injection) via the Default.aspx UserName parameter. NOTE: the issues/227 reference does not imply that the affected product can be downloaded from GitHub. It was simply a convenient location for a public bug report.

Frequently asked questions

What is CVE-2020-8788?: Synaptive Medical ClearCanvas ImageServer 3.0 Alpha allows XSS (and HTML injection) via the Default.aspx UserName parameter. NOTE: the issues/227 reference does not imply that the affected product can be downloaded from GitHub. It was simply a convenient location for a public bug report.
How severe is CVE-2020-8788?: CVE-2020-8788 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-2020-8788 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8788?: CVE-2020-8788 affects Synaptivemedical Clearcanvas. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-8788?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-8788 published?: CVE-2020-8788 was published on 2020-02-07 and last updated on 2026-06-17.

References

https://github.com/ClearCanvas/ClearCanvas/issues/227

Affected products (1)

cpe:2.3:a:synaptivemedical:clearcanvas:3.0:alpha:*:*:*:*:*:*

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