Umbraco Forms components vulnerable to Stored Cross-site Scripting
Impact
Authenticated user that has access to edit Forms may inject unsafe code into Forms components.
Patches
Issue can be mitigated by configuring TitleAndDescription:AllowUnsafeHtmlRendering after upgrading to patched versions (13.0.1, 12.2.2, 10.5.3, 8.13.13).
References
https://docs.umbraco.com/umbraco-forms/release-notes#id-13.0.1-january-16th-2024 https://docs.umbraco.com/umbraco-forms/v/12.forms.latest/release-notes#id-12.2.2-january-16th-2024 https://docs.umbraco.com/umbraco-forms/v/10.forms.latest/release-notes https://docs.umbraco.com/umbraco-forms/developer/configuration#editing-configuration-values
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | Umbraco.Forms | >= 13.0.0, < 13.0.1, >= 12.0.0, < 12.2.2, >= 10.0.0, < 10.5.3, >= 8.0.0, < 8.13.13 | 13.0.1, 12.2.2, 10.5.3, 8.13.13 |
References
- https://github.com/umbraco/Umbraco.Forms.Issues/security/advisories/GHSA-p572-p2rj-q5f4
- https://nvd.nist.gov/vuln/detail/CVE-2024-35239
- https://docs.umbraco.com/umbraco-forms/developer/configuration#editing-configuration-values
- https://docs.umbraco.com/umbraco-forms/release-notes#id-13.0.1-january-16th-2024
- https://docs.umbraco.com/umbraco-forms/v/10.forms.latest/release-notes
- https://docs.umbraco.com/umbraco-forms/v/10.forms.latest/release-notes#version-8
- https://docs.umbraco.com/umbraco-forms/v/12.forms.latest/release-notes#id-12.2.2-january-16th-2024
- https://github.com/umbraco/Umbraco.Forms.Issues
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-79- Platform
- .NET (NuGet)
- Package
Umbraco.Forms- Disclosed
- 28.05.2024
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-p572-p2rj-q5f4 - CC BY 4.0
Vulnerability history: Umbraco.Forms
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 05.2024 01.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 2
- Low 3
Disclosures per year
- 2024: 1
- 2025: 2
- 2026: 2
-
Umbraco Forms components vulnerable to Stored Cross-site Scripting this entry
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