# CVE-2024-29035: Blind SSRF Leads to Port Scan by using Webhooks

Source: https://junglewise.ai/threats/cve-2024-29035-blind-ssrf-leads-to-port-scan-by-using-webhooks  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-04-17  
License: CC BY 4.0 with a link back

CVE-2024-29035 · Severity: low · CVSS 3.1 · Published 2024-04-17

Blind SSRF Leads to Port Scan by using Webhooks

Technologies: [Umbraco.Cms.Core (NuGet)](https://junglewise.ai/threats/technologies/umbraco-cms-core), [Umbraco.Cms.Web.BackOffice (NuGet)](https://junglewise.ai/threats/technologies/umbraco-cms-web-backoffice). Vendors: [NuGet](https://junglewise.ai/threats/vendors/nuget).

## Quick answers

**Is CVE-2024-29035 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-29035 being exploited in the wild.

**How severe is CVE-2024-29035?** Low severity, with a CVSS score of 3.1, published 17 April 2024.

**Which products and versions are affected?** Umbraco.Cms.Core (NuGet) ECOSYSTEM:introduced=13.0.0,fixed=13.1.1; Umbraco.Cms.Web.BackOffice (NuGet) ECOSYSTEM:introduced=13.0.0,fixed=13.1.1.

**Is there a fix for CVE-2024-29035?** Yes. Umbraco.Cms.Core (NuGet): upgrade to 13.1.1 or later; Umbraco.Cms.Web.BackOffice (NuGet): upgrade to 13.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-29035?** Check whether you run Umbraco.Cms.Core (NuGet) or Umbraco.Cms.Web.BackOffice (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Umbraco.Cms.Core (NuGet): upgrade to 13.1.1 or later

  ```sh
  dotnet add package Umbraco.Cms.Core --version 13.1.1
  ```

- Umbraco.Cms.Web.BackOffice (NuGet): upgrade to 13.1.1 or later

  ```sh
  dotnet add package Umbraco.Cms.Web.BackOffice --version 13.1.1
  ```


## Affected products

- Umbraco.Cms.Core (NuGet) ECOSYSTEM:introduced=13.0.0,fixed=13.1.1
- Umbraco.Cms.Web.BackOffice (NuGet) ECOSYSTEM:introduced=13.0.0,fixed=13.1.1

## Identifiers

- CVE-2024-29035
- GHSA-74p6-39f2-23v3

## Related threats

- [Umbraco Allows a Restricted Editor User to Delete Media Item or Access Unauthorized Content](https://junglewise.ai/threats/cve-2025-27602-umbraco-allows-a-restricted-editor-user-to-delete-media-item-or)
- [Duplicate Advisory: Umbraco CMS Cross-site Scripting vulnerability](https://junglewise.ai/threats/duplicate-advisory-umbraco-cms-cross-site-scripting-vulnerability-d37ba288)
- [Umbraco CMS Open Redirect Bypass Protection](https://junglewise.ai/threats/cve-2024-34071-umbraco-cms-open-redirect-bypass-protection)
- [Umbraco allows possible Admin-level access to backoffice without Auth under rare conditions](https://junglewise.ai/threats/cve-2023-37267-umbraco-allows-possible-admin-level-access-to-backoffice-without)
- [Umbraco Persistent Password Reset Poison](https://junglewise.ai/threats/cve-2022-22691-umbraco-persistent-password-reset-poison)