What is the CVSS score of CVE-2020-37019?

CVE-2020-37019 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Orchard Core RC1 are affected by CVE-2020-37019?

Organizations using Orchard Core RC1 should be aware of moderate risk from CVE-2020-37019, a cross-site scripting vulnerability rated CVSS 6.4.

Is there a public PoC exploit available for CVE-2020-37019?

Yes, a public proof-of-concept exploit is available for CVE-2020-37019. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2020-37019?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Orchard Core RC1 CVE-2020-37019

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-01-30 disclosure@vulncheck.com

XSS

6.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.4 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:00 vuln.today

PoC Detected

Feb 04, 2026 - 16:34 vuln.today

Public exploit code

CVE Published

Jan 30, 2026 - 17:16 nvd

MEDIUM 6.4

DescriptionCVE.org

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.

AnalysisAI

Orchard Core RC1 contains a persistent cross-site scripting vulnerability that allows remote attackers to inject malicious scripts through blog post creation. [CVSS 6.4 MEDIUM]

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). 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.

Affected ProductsAI

Component: MarkdownBodyPart.Source.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

CVE-2020-37019 vulnerability details – vuln.today

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