What’s Vulnerable › Vulnerabilities

CVE-2020-37019: Orchard Core RC1 - Persistent Cross-Site Scripting

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-30 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• Orchardcore Orchard Core: 1.0

References

• http://www.orchardcore.net/
• https://github.com/OrchardCMS/OrchardCore
• https://github.com/OrchardCMS/OrchardCore/issues/5802
• https://www.exploit-db.com/exploits/48456
• https://www.vulncheck.com/advisories/orchard-core-rc-persistent-cross-site-scripting

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