CVE-2026-33989
Path Traversal in Mobile Next MCP Server Allows Arbitrary File Write
Publication date: 2026-03-27
Last updated on: 2026-03-31
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mobilenexthq | mobile_mcp | to 0.0.49 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-22 | The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. |
| CWE-73 | The product allows user input to control or influence paths or file names that are used in filesystem operations. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The vulnerability exists in the Mobile Next MCP server prior to version 0.0.49. It is a Path Traversal vulnerability found in the tools mobile_save_screenshot and mobile_start_screen_recording. Specifically, the parameters 'saveTo' and 'output' are used directly in filesystem operations without proper validation. This allows an attacker to write files outside the intended workspace, potentially overwriting or creating files in unauthorized locations.
How can this vulnerability impact me? :
This vulnerability can allow an attacker to write arbitrary files outside the intended workspace on the server. This can lead to unauthorized modification or creation of files, which may result in disruption of service, data corruption, or further exploitation of the system. The CVSS score of 8.1 indicates a high severity with impacts on integrity and availability.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, upgrade the @mobilenext/mobile-mcp server to version 0.0.49 or later, as this version fixes the Path Traversal issue.