GHSA-pgvc-6h2p-q4f6 CVE-2025-49147
Umbraco CMS disclosure of configured password requirements
- Severity
- 5.3 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 0.34%
- Chance of exploitation in the next 30 days. Higher than 27.81% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere
- Fix
10.8.11- Upgrade Umbraco.Cms to this version or later
Description
Impact
Via a request to an anonymously authenticated endpoint it's possible to retrieve information about the configured password requirements. The information available is limited but would perhaps give some additional detail useful for someone attempting to brute force derive a user's password.
The vulnerability can be found in the supported Umbraco versions 10 and 13. It was not exposed in Umbraco 7 or 8, nor in 14 or higher versions.
Patches
Patched in 10.8.11 and 13.9.2
Affected versions
NuGet
| Package | Vulnerable | Fixed in |
|---|---|---|
| Umbraco.Cms | >= 10.0.0, < 10.8.11 |
10.8.11 |
| Umbraco.Cms | >= 13.0.0, < 13.9.2 |
13.9.2 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
Umbraco.Cms NuGet → 10.8.11
- dotnet
dotnet add package Umbraco.Cms --version 10.8.11
Severity breakdown
CVSS 3.1 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Weakness
CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere
The product does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the product does.
How to prevent it
- Architecture and Design, Implementation: Production applications should never use methods that generate internal details such as stack traces and error messages unless that information is directly committed to a log that is not viewable by the end user. All error message text should be HTML entity encoded before being written to the log file to protect against potential cross-site scripting attacks against the viewer of the logs
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-wr57-hqmp-fgvh Umbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansion | High | Also affects Umbraco.Cms |
| GHSA-vr9v-27gg-qgx4 Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog | Medium | Also affects Umbraco.Cms |
| GHSA-2qjj-h6wp-c7h7 Umbraco.Cms: Open Redirect Vulnerability in Surface Controllers | Medium | Also affects Umbraco.Cms |
| GHSA-rhcg-3h8r-v6vp Umbraco Affected by Vertical Privilege Escalation via Missing Authorization Checks | High | Also affects Umbraco.Cms |
| GHSA-vrqc-59mw-qqg7 Umbraco has Stored XSS in UFM Rendering Pipeline via Permissive DOMPurify Attribute Filtering | Medium | Also affects Umbraco.Cms |
| GHSA-fpvf-fvp5-996r Umbraco Backoffice API Allows Unauthorized Modification of Domain Data | Medium | Also affects Umbraco.Cms |
| GHSA-54mj-vcvj-q3v5 Umbraco CMS has an arbitrary file upload vulnerability | Critical | Also affects Umbraco.Cms |
| GHSA-hfv2-pf68-m33x Umbraco Vulnerable to Improper File Access and Credential Exposure in Dictionary Import Functionality | Medium | Also affects Umbraco.Cms |
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