How severe is CVE-2020-37019?

CVE-2020-37019 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-37019 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-37019?

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

Does CVE-2020-37019 have an EU (EUVD) identifier?

Yes. CVE-2020-37019 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30959.

When was CVE-2020-37019 published?

CVE-2020-37019 was published on 2026-01-30 and last updated on 2026-06-17.

CVE-2020-37019

CVE-2020-37019 is a medium-severity vulnerability with a CVSS 3.x base score of 6.4. 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 6.4)
CVSS v4: 5.1
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-30959
Weakness: CWE-79
Published: 2026-01-30
Last modified: 2026-06-17

Description

Orchard Core RC1 contains a persistent cross-site scripting vulnerability that allows remote attackers to inject malicious scripts through blog post creation. Attackers can create blog posts with embedded JavaScript in the MarkdownBodyPart.Source parameter to execute arbitrary scripts in victim browsers.

Frequently asked questions

What is CVE-2020-37019?: Orchard Core RC1 contains a persistent cross-site scripting vulnerability that allows remote attackers to inject malicious scripts through blog post creation. Attackers can create blog posts with embedded JavaScript in the MarkdownBodyPart.Source parameter to execute arbitrary scripts in victim browsers.
How severe is CVE-2020-37019?: CVE-2020-37019 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-37019 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-37019?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2020-37019 have an EU (EUVD) identifier?: Yes. CVE-2020-37019 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30959.
When was CVE-2020-37019 published?: CVE-2020-37019 was published on 2026-01-30 and last updated on 2026-06-17.

References

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