What’s Vulnerable › Vulnerabilities

CVE-2020-28246

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-06-02 · updated 2026-06-17
• Weakness: CWE-74

Description

A Server-Side Template Injection (SSTI) was discovered in Form.io 2.0.0. This leads to Remote Code Execution during deletion of the default Email template URL. NOTE: the email templating service was removed after 2020. Additionally, the vendor disputes this issue indicating this is sandboxed and only executable by admins.

Affected products

• Form.Io: 2.0.0

References

• https://github.com/formio/enterprise-release/blob/master/API-Server-Change-Log.md
• https://github.com/formio/formio
• https://github.com/formio/enterprise-release/blob/master/API-Server-Change-Log.md
• https://github.com/formio/formio

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