Drupal Comment reply form allows access to restricted content
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | drupal/core | >= 8.4.0, < 8.4.5, >= 7.0, < 7.57 | 8.4.5, 7.57 |
| Composer package | drupal/drupal | >= 8.4.0, < 8.4.5, >= 7.0, < 7.57 | 8.4.5, 7.57 |
| Drupal (core) | drupal/core | >= 8.4.0, < 8.4.5, >= 7.0, < 7.57, >= 8.4.0, < 8.4.5, >= 7.0, < 7.57 | 8.4.5, 7.57 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2017-6926
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6926.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6926.yaml
- https://github.com/drupal/core
- https://www.drupal.org/sa-core-2018-001
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-200- Platform
- Composer, Drupal
- Package
drupal/core, drupal/drupal- Disclosed
- 14.05.2022
- Updated
- 11.10.2026 11:18
Sources and licenses
OSV / GitHub Advisory Database - GHSA-2p28-5mvp-2j2r - CC BY 4.0
Vulnerability history: drupal/drupal
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 81
- First → latest
- 03.2018 11.2024
- Without a fix
- 0
- Exploited in attacks
- 4
Severity breakdown
- Critical 9
- High 28
- Medium 42
- Low 2
Disclosures per year
- 2018: 3
- 2019: 7
- 2020: 8
- 2021: 2
- 2022: 42
- 2023: 0
- 2024: 19
- 2025: 0
- 2026: 0
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