GHSA-6q65-j4jw-9cg8
DotVVM allows path traversal when deployed in Debug mode
GHSA-6q65-j4jw-9cg8 is a high vulnerability (CVSS 7.5) in DotVVM, published June 19, 2025. No source lists public exploit code. Fixed in DotVVM 4.3.8.
- Severity
- 7.5 HighCVSS 3.1, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
4.3.8DotVVM +5 more
Description
Description
There is a path traversal vulnerability in any DotVVM application started in Debug mode, if at least one resource with the FileResourceLocation has been added. The vulnerability allows an attacker to read arbitrary files from the filesystem accessible by the web application (i.e. appsettings.json or other files containing secrets).
Patches
The bug is patched in versions 4.2.10, 4.3.8 and 5.0.0-preview03-final (and newer).
Apart from updating DotVVM, it is also recommend invalidating any secrets which could have been leaked by an application deployed in Debug mode (such as database passwords).
Workarounds
If you cannot update to a patched version, avoid running a publicly accessible DotVVM application in Debug mode (Development environment in Asp.Net Core). It is recommend adding the following statement to the DotvvmStartup class:
config.Debug = false; // TODO: workaround for GHSA-6q65-j4jw-9cg8, remove after updating DotVVM
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Affected packages
| Package | Affected | Fixed |
|---|---|---|
DotVVMNuGet | 4.3.0-preview01-final to 4.3.7 | 4.3.8 |
DotVVMNuGet | 5.0.0-preview01-final up to 5.0.0-preview03-final | 5.0.0-preview03-final |
DotVVMNuGet | before 4.2.10 | 4.2.10 |
DotVVMNuGet | 4.3.0-preview01-final up to 4.3.8, plus listed versions 4.3.04.3.0-preview02-final4.3.0-preview03-final4.3.0-preview04-final4.3.0-preview05-final Show 7 moreShow less4.3.0-preview06-final4.3.24.3.34.3.44.3.54.3.64.3.7 | 4.3.8 |
DotVVMNuGet | 5.0.0-preview01-final up to 5.0.0-preview03-final, plus listed versions 5.0.0-preview02-final | 5.0.0-preview03-final |
DotVVMNuGet | before 4.2.10, plus listed versions 0.6.0-pre0.7.0-pre0.7.0.1-pre0.7.0.2-pre0.7.0.3-pre Show 45 moreShow less0.7.0.4-pre0.7.0.5-pre0.7.0.6-pre0.7.0.7-pre0.7.0.8-pre0.8.0-pre0.8.1-pre0.8.1.1-pre0.8.1.2-pre0.8.2-pre0.8.2.1-pre0.8.2.2-pre0.8.2.3-pre0.8.3-pre0.8.3.1-pre0.8.3.10-pre0.8.3.2-pre0.8.3.3-pre0.8.3.4-pre0.8.3.5-pre0.8.3.6-pre0.8.3.7-pre0.8.3.8-pre0.8.3.9-pre0.8.4-pre0.8.4.1-pre0.8.4.2-pre0.8.5-pre0.8.5.1-pre0.8.5.10-pre0.8.5.2-pre0.8.5.3-pre0.8.5.4-pre0.8.5.5-pre0.8.5.6-pre0.8.5.7-pre0.8.5.8-pre0.8.5.9-pre0.8.6-pre0.8.6.1-pre0.8.6.13-pre0.8.6.2-pre0.8.6.3-pre0.8.6.4-pre0.8.6.5-pre | 4.2.10 |
What each source reports
GitHub Advisories Score used
DotVVM allows path traversal when deployed in Debug mode
Description
There is a path traversal vulnerability in any DotVVM application started in Debug mode, if at least one resource with the FileResourceLocation has been added. The vulnerability allows an attacker to read arbitrary files from the filesystem accessible by the web application (i.e. appsettings.json or other files containing secrets).
Patches
The bug is patched in versions 4.2.10, 4.3.8 and 5.0.0-preview03-final (and newer).
Apart from updating DotVVM, it is also recommend invalidating any secrets which could have been leaked by an application deployed in Debug mode (such as database passwords).
Workarounds
If you cannot update to a patched version, avoid running a publicly accessible DotVVM application in Debug mode (Development environment in Asp.Net Core). It is recommend adding the following statement to the DotvvmStartup class:
config.Debug = false; // TODO: workaround for GHSA-6q65-j4jw-9cg8, remove after updating DotVVM
- Record
GHSA-6q65-j4jw-9cg8- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
DotVVM allows path traversal when deployed in Debug mode
Description
There is a path traversal vulnerability in any DotVVM application started in Debug mode, if at least one resource with the FileResourceLocation has been added. The vulnerability allows an attacker to read arbitrary files from the filesystem accessible by the web application (i.e. appsettings.json or other files containing secrets).
Patches
The bug is patched in versions 4.2.10, 4.3.8 and 5.0.0-preview03-final (and newer).
Apart from updating DotVVM, it is also recommend invalidating any secrets which could have been leaked by an application deployed in Debug mode (such as database passwords).
Workarounds
If you cannot update to a patched version, avoid running a publicly accessible DotVVM application in Debug mode (Development environment in Asp.Net Core). It is recommend adding the following statement to the DotvvmStartup class:
config.Debug = false; // TODO: workaround for GHSA-6q65-j4jw-9cg8, remove after updating DotVVM
- Record
GHSA-6q65-j4jw-9cg8- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
Left out here: 173 versions. The JSON record has them.