GHSA-4g8m-5mj5-c8xg
First published: Tue May 06 2025(Updated: )
### Impact Based on an analysis of the timing of post login API responses, it's possible to determine whether an account exists. ### Patches Patched in 10.8.10 and 13.8.1. ### Workarounds None available.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| nuget/Umbraco.Cms | <10.8.10 | 10.8.10 |
| nuget/Umbraco.Cms | >=11.0.0-rc1<13.8.1 | 13.8.1 |
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Reference Links
- https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-4g8m-5mj5-c8xg
- https://github.com/umbraco/Umbraco-CMS/commit/14fbd20665b453cbf094ccf4575b79a9fba07e03
- https://github.com/umbraco/Umbraco-CMS/commit/34709be6cce9752dfa767dffbf551305f48839bc
- https://nvd.nist.gov/vuln/detail/CVE-2025-46736
- https://github.com/advisories/GHSA-4g8m-5mj5-c8xg (Advisory)
Frequently Asked Questions
What is the severity of GHSA-4g8m-5mj5-c8xg?
GHSA-4g8m-5mj5-c8xg has a moderate severity level due to the potential enumeration of user accounts.
How do I fix GHSA-4g8m-5mj5-c8xg?
To fix GHSA-4g8m-5mj5-c8xg, upgrade to Umbraco.Cms version 10.8.10 or 13.8.1.
What systems are affected by GHSA-4g8m-5mj5-c8xg?
GHSA-4g8m-5mj5-c8xg affects Umbraco.Cms versions prior to 10.8.10 and between 11.0.0-rc1 and 13.8.1.
Are there any workarounds for GHSA-4g8m-5mj5-c8xg?
There are no workarounds available for GHSA-4g8m-5mj5-c8xg.
What is the primary impact of GHSA-4g8m-5mj5-c8xg?
The primary impact of GHSA-4g8m-5mj5-c8xg is the ability to determine if an account exists based on API response timing.
- agent/weakness
- agent/last-modified-date
- agent/source
- agent/type
- agent/references
- agent/softwarecombine
- agent/description
- agent/first-publish-date
- agent/severity
- agent/event
- agent/tags
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-4g8m-5mj5-c8xg
- alias/CVE-2025-46736
- agent/software-canonical-lookup
- package-manager/nuget