PT-2025-27372 · Nuget · Dotvvm

Published 2025-06-19 · Updated 2025-06-19

OSV

CVSS v3.1

7.5

High

Base vector

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

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

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

GHSA-6Q65-J4JW-9CG8

Affected Products

Dotvvm

References · 4

• https://osv.dev/vulnerability/GHSA-6q65-j4jw-9cg8 · Vendor Advisory
• https://github.com/riganti/dotvvm/security/advisories/GHSA-6q65-j4jw-9cg8 · Note
• https://github.com/riganti/dotvvm · Note
• https://github.com/riganti/dotvvm/commit/68db0110beeda4e8e4be1b7c4e480ef876895bb5 · Note