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CVE-2026-24687 (GCVE-0-2026-24687)

Vulnerability from nvd – Published: 2026-01-29 19:57 – Updated: 2026-01-29 20:47

Title

Umbraco.Forms has path traversal and file enumeration vulnerability in Linux/Mac

Summary

Umbraco Forms is a form builder that integrates with the Umbraco content management system. It's possible for an authenticated backoffice-user to enumerate and traverse paths/files on the systems filesystem and read their contents, on Mac/Linux Umbraco installations using Forms. As Umbraco Cloud runs in a Windows environment, Cloud users aren't affected. This issue affects versions 16 and 17 of Umbraco Forms and is patched in 16.4.1 and 17.1.1. If upgrading is not immediately possible, users can mitigate this vulnerability by configuring a WAF or reverse proxy to block requests containing path traversal sequences (`../`, `..\`) in the `fileName` parameter of the export endpoint, restricting network access to the Umbraco backoffice to trusted IP ranges, and/or blocking the `/umbraco/forms/api/v1/export` endpoint entirely if the export feature is not required. However, upgrading to the patched version is strongly recommended.

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/umbraco/Umbraco.Forms.Issues/s…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
umbraco	Umbraco.Forms.Issues	Affected: >= 16.0.0, < 16.4.1 Affected: >= 17.0.0, < 17.1.1

Show details on NVD website

JSON

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                "id": "CVE-2026-24687",
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CVE-2025-47280 (GCVE-0-2025-47280)

Vulnerability from nvd – Published: 2025-05-13 17:06 – Updated: 2025-05-13 17:36

Title

Umbraco.Forms has HTML injection vulnerability in 'Send email' workflow

Summary

Umbraco Forms is a form builder that integrates with the Umbraco content management system. Starting in the 7.x branch and prior to versions 13.4.2 and 15.1.2, the 'Send email' workflow does not HTML encode the user-provided field values in the sent email message, making any form with this workflow configured vulnerable, as it allows sending the message from a trusted system and address, potentially bypassing spam and email client security systems. This issue affects all (supported) versions Umbraco Forms and is patched in 13.4.2 and 15.1.2. Unpatched or unsupported versions can workaround this issue by using the `Send email with template (Razor)` workflow instead or writing a custom workflow type. To avoid accidentally using the vulnerable workflow again, the `SendEmail` workflow type can be removed using a composer available in the GitHub Security Advisory for this vulnerability.

Severity

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N/E:U

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-116 - Improper Encoding or Escaping of Output

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/umbraco/Umbraco.Forms.Issues/s…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
umbraco	Umbraco.Forms.Issues	Affected: >= 7.0.0, < 13.4.2 Affected: >= 15.0.0, < 15.1.2

Show details on NVD website

JSON

To clipboard

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CVE-2025-23041 (GCVE-0-2025-23041)

Vulnerability from nvd – Published: 2025-01-14 18:54 – Updated: 2025-01-14 20:44

Title

Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length in Umbraco.Forms

Summary

Umbraco.Forms is a web form framework written for the nuget ecosystem. Character limits configured by editors for short and long answer fields are validated only client-side, not server-side. This issue has been patched in versions 8.13.16, 10.5.7, 13.2.2, and 14.1.2. Users are advised to upgrade. There are no known workarounds for this issue.

Severity

5.8 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/umbraco/Umbraco.Forms.Issues/s…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
umbraco	Umbraco.Forms.Issues	Affected: < 8.13.16 Affected: >= 10.0.0, < 10.5.7 Affected: >= 11.0.0, < 13.2.2 Affected: >= 14.0.0, < 14.1.2

Show details on NVD website

JSON

To clipboard

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CVE-2024-35239 (GCVE-0-2024-35239)

Vulnerability from nvd – Published: 2024-05-28 20:15 – Updated: 2024-08-02 03:07

Title

Stored Cross-site Scripting on Components of Umbraco Forms

Summary

Umbraco Commerce is an open source dotnet web forms solution. In affected versions an authenticated user that has access to edit Forms may inject unsafe code into Forms components. This issue can be mitigated by configuring TitleAndDescription:AllowUnsafeHtmlRendering after upgrading to one of the patched versions (13.0.1, 12.2.2, 10.5.3, 8.13.13).

Severity

2.7 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

5 references

URL	Tags
https://github.com/umbraco/Umbraco.Forms.Issues/s…	x_refsource_CONFIRM
https://docs.umbraco.com/umbraco-forms/developer/…	x_refsource_MISC
https://docs.umbraco.com/umbraco-forms/release-no…	x_refsource_MISC
https://docs.umbraco.com/umbraco-forms/v/10.forms…	x_refsource_MISC
https://docs.umbraco.com/umbraco-forms/v/12.forms…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
umbraco	Umbraco.Forms.Issues	Affected: >= 13.0.0, < 13.0.1 Affected: >= 12.0.0, < 12.2.2 Affected: >= 10.0.0, < 10.5.3 Affected: < 8.13.13

Show details on NVD website

JSON

To clipboard

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CVE-2026-24687 (GCVE-0-2026-24687)

Vulnerability from cvelistv5 – Published: 2026-01-29 19:57 – Updated: 2026-01-29 20:47

Title

Umbraco.Forms has path traversal and file enumeration vulnerability in Linux/Mac

Summary

Umbraco Forms is a form builder that integrates with the Umbraco content management system. It's possible for an authenticated backoffice-user to enumerate and traverse paths/files on the systems filesystem and read their contents, on Mac/Linux Umbraco installations using Forms. As Umbraco Cloud runs in a Windows environment, Cloud users aren't affected. This issue affects versions 16 and 17 of Umbraco Forms and is patched in 16.4.1 and 17.1.1. If upgrading is not immediately possible, users can mitigate this vulnerability by configuring a WAF or reverse proxy to block requests containing path traversal sequences (`../`, `..\`) in the `fileName` parameter of the export endpoint, restricting network access to the Umbraco backoffice to trusted IP ranges, and/or blocking the `/umbraco/forms/api/v1/export` endpoint entirely if the export feature is not required. However, upgrading to the patched version is strongly recommended.

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/umbraco/Umbraco.Forms.Issues/s…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
umbraco	Umbraco.Forms.Issues	Affected: >= 16.0.0, < 16.4.1 Affected: >= 17.0.0, < 17.1.1

Show details on NVD website

JSON

To clipboard

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CVE-2025-47280 (GCVE-0-2025-47280)

Vulnerability from cvelistv5 – Published: 2025-05-13 17:06 – Updated: 2025-05-13 17:36

Title

Umbraco.Forms has HTML injection vulnerability in 'Send email' workflow

Summary

Umbraco Forms is a form builder that integrates with the Umbraco content management system. Starting in the 7.x branch and prior to versions 13.4.2 and 15.1.2, the 'Send email' workflow does not HTML encode the user-provided field values in the sent email message, making any form with this workflow configured vulnerable, as it allows sending the message from a trusted system and address, potentially bypassing spam and email client security systems. This issue affects all (supported) versions Umbraco Forms and is patched in 13.4.2 and 15.1.2. Unpatched or unsupported versions can workaround this issue by using the `Send email with template (Razor)` workflow instead or writing a custom workflow type. To avoid accidentally using the vulnerable workflow again, the `SendEmail` workflow type can be removed using a composer available in the GitHub Security Advisory for this vulnerability.

Severity

2.3 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:H/SA:N/E:U

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-116 - Improper Encoding or Escaping of Output

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/umbraco/Umbraco.Forms.Issues/s…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
umbraco	Umbraco.Forms.Issues	Affected: >= 7.0.0, < 13.4.2 Affected: >= 15.0.0, < 15.1.2

Show details on NVD website

JSON

To clipboard

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CVE-2025-23041 (GCVE-0-2025-23041)

Vulnerability from cvelistv5 – Published: 2025-01-14 18:54 – Updated: 2025-01-14 20:44

Title

Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length in Umbraco.Forms

Summary

Umbraco.Forms is a web form framework written for the nuget ecosystem. Character limits configured by editors for short and long answer fields are validated only client-side, not server-side. This issue has been patched in versions 8.13.16, 10.5.7, 13.2.2, and 14.1.2. Users are advised to upgrade. There are no known workarounds for this issue.

Severity

5.8 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/umbraco/Umbraco.Forms.Issues/s…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
umbraco	Umbraco.Forms.Issues	Affected: < 8.13.16 Affected: >= 10.0.0, < 10.5.7 Affected: >= 11.0.0, < 13.2.2 Affected: >= 14.0.0, < 14.1.2

Show details on NVD website

JSON

To clipboard

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CVE-2024-35239 (GCVE-0-2024-35239)

Vulnerability from cvelistv5 – Published: 2024-05-28 20:15 – Updated: 2024-08-02 03:07

Title

Stored Cross-site Scripting on Components of Umbraco Forms

Summary

Umbraco Commerce is an open source dotnet web forms solution. In affected versions an authenticated user that has access to edit Forms may inject unsafe code into Forms components. This issue can be mitigated by configuring TitleAndDescription:AllowUnsafeHtmlRendering after upgrading to one of the patched versions (13.0.1, 12.2.2, 10.5.3, 8.13.13).

Severity

2.7 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

5 references

URL	Tags
https://github.com/umbraco/Umbraco.Forms.Issues/s…	x_refsource_CONFIRM
https://docs.umbraco.com/umbraco-forms/developer/…	x_refsource_MISC
https://docs.umbraco.com/umbraco-forms/release-no…	x_refsource_MISC
https://docs.umbraco.com/umbraco-forms/v/10.forms…	x_refsource_MISC
https://docs.umbraco.com/umbraco-forms/v/12.forms…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
umbraco	Umbraco.Forms.Issues	Affected: >= 13.0.0, < 13.0.1 Affected: >= 12.0.0, < 12.2.2 Affected: >= 10.0.0, < 10.5.3 Affected: < 8.13.13

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-06-05T20:42:39.260Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T03:07:46.872Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/umbraco/Umbraco.Forms.Issues/security/advisories/GHSA-p572-p2rj-q5f4",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/umbraco/Umbraco.Forms.Issues/security/advisories/GHSA-p572-p2rj-q5f4"
          },
          {
            "name": "https://docs.umbraco.com/umbraco-forms/developer/configuration#editing-configuration-values",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://docs.umbraco.com/umbraco-forms/developer/configuration#editing-configuration-values"
          },
          {
            "name": "https://docs.umbraco.com/umbraco-forms/release-notes#id-13.0.1-january-16th-2024",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://docs.umbraco.com/umbraco-forms/release-notes#id-13.0.1-january-16th-2024"
          },
          {
            "name": "https://docs.umbraco.com/umbraco-forms/v/10.forms.latest/release-notes",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://docs.umbraco.com/umbraco-forms/v/10.forms.latest/release-notes"
          },
          {
            "name": "https://docs.umbraco.com/umbraco-forms/v/12.forms.latest/release-notes#id-12.2.2-january-16th-2024",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://docs.umbraco.com/umbraco-forms/v/12.forms.latest/release-notes#id-12.2.2-january-16th-2024"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Umbraco.Forms.Issues",
          "vendor": "umbraco",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 13.0.0, \u003c 13.0.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 12.0.0, \u003c 12.2.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 10.0.0, \u003c 10.5.3"
            },
            {
              "status": "affected",
              "version": "\u003c 8.13.13 "
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Umbraco Commerce is an open source dotnet web forms solution. In affected versions an authenticated user that has access to edit Forms may inject unsafe code into Forms components. This issue can be mitigated by configuring TitleAndDescription:AllowUnsafeHtmlRendering after upgrading to one of the patched versions (13.0.1, 12.2.2, 10.5.3, 8.13.13)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 2.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-28T20:15:28.512Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/umbraco/Umbraco.Forms.Issues/security/advisories/GHSA-p572-p2rj-q5f4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/umbraco/Umbraco.Forms.Issues/security/advisories/GHSA-p572-p2rj-q5f4"
        },
        {
          "name": "https://docs.umbraco.com/umbraco-forms/developer/configuration#editing-configuration-values",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.umbraco.com/umbraco-forms/developer/configuration#editing-configuration-values"
        },
        {
          "name": "https://docs.umbraco.com/umbraco-forms/release-notes#id-13.0.1-january-16th-2024",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.umbraco.com/umbraco-forms/release-notes#id-13.0.1-january-16th-2024"
        },
        {
          "name": "https://docs.umbraco.com/umbraco-forms/v/10.forms.latest/release-notes",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.umbraco.com/umbraco-forms/v/10.forms.latest/release-notes"
        },
        {
          "name": "https://docs.umbraco.com/umbraco-forms/v/12.forms.latest/release-notes#id-12.2.2-january-16th-2024",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.umbraco.com/umbraco-forms/v/12.forms.latest/release-notes#id-12.2.2-january-16th-2024"
        }
      ],
      "source": {
        "advisory": "GHSA-p572-p2rj-q5f4",
        "discovery": "UNKNOWN"
      },
      "title": "Stored Cross-site Scripting on Components of Umbraco Forms"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-35239",
    "datePublished": "2024-05-28T20:15:28.512Z",
    "dateReserved": "2024-05-14T15:39:41.786Z",
    "dateUpdated": "2024-08-02T03:07:46.872Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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8 vulnerabilities found for Umbraco.Forms.Issues by umbraco

CVE-2026-24687 (GCVE-0-2026-24687)

CVE-2025-47280 (GCVE-0-2025-47280)

CVE-2025-23041 (GCVE-0-2025-23041)

CVE-2024-35239 (GCVE-0-2024-35239)

CVE-2026-24687 (GCVE-0-2026-24687)

CVE-2025-47280 (GCVE-0-2025-47280)

CVE-2025-23041 (GCVE-0-2025-23041)

CVE-2024-35239 (GCVE-0-2024-35239)