Email Injection Vulnerability in Umbraco Forms by Umbraco
CVE-2025-47280

2.3LOW

Key Information:

Vendor

Umbraco

Status
Umbraco.forms.issues
Vendor
CVE Published:
13 May 2025

What is CVE-2025-47280?

Umbraco Forms, an integral part of the Umbraco content management system, is susceptible to an email injection vulnerability. This flaw arises from the 'Send email' workflow, which does not properly HTML encode user-submitted field values in outgoing messages. Consequently, this oversight could enable attackers to manipulate emails sent through trusted systems, bypassing traditional spam filters and email security measures. All supported versions of Umbraco Forms are impacted, with patches available in versions 13.4.2 and 15.1.2. Users of affected versions are advised to utilize the 'Send email with template (Razor)' workflow as a temporary solution. Additionally, users can mitigate risks by removing the vulnerable 'SendEmail' workflow using the dedicated composer provided in the GitHub Security Advisory.

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Deploy the Patch

Affected Version(s)

Umbraco.Forms.Issues >= 7.0.0, < 13.4.2 < 7.0.0, 13.4.2

Umbraco.Forms.Issues >= 15.0.0, < 15.1.2 < 15.0.0, 15.1.2

References

https://github.com/umbraco/Umbraco.Forms.Issues/security/...
x_refsource_CONFIRM

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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