Drupal core - SA-CORE-2021-006
The Drupal core Media module allows embedding internal and external media in content fields. In certain circumstances, the filter could allow an unprivileged user to inject HTML into a page when it is accessed by a trusted user with permission to embed media. In some cases, this could lead to cross-site scripting.
This advisory is not covered by Drupal Steward.
Also see Entity Embed - Moderately critical - Cross Site Request Forgery - SA-CONTRIB-2021-028 which addresses a similar vulnerability for that module.
Updated 18:15 UTC to clarify text.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | drupal/core | >= 8.0.0, < 8.9.19, >= 9.1.0, < 9.1.13, >= 9.2.0, < 9.2.6 | 8.9.19, 9.1.13, 9.2.6 |
| Composer package | drupal/entity_embed | < 1.2.0 | 1.2.0 |
| Drupal (core) | drupal/core | >= 8.0.0, < 8.9.19, >= 9.1.0, < 9.1.13, >= 9.2.0, < 9.2.6 | 8.9.19, 9.1.13, 9.2.6 |
| Drupal module | drupal/entity_embed | < 1.2.0 | 1.2.0 |
References
- Weakness (CWE)
-- Platform
- Composer, Drupal
- Package
drupal/core, drupal/entity_embed- Disclosed
- 15.09.2021
- Updated
- 11.10.2026 13:17
Sources and licenses
OSV / GitHub Advisory Database - DRUPAL-CORE-2021-006 - CC BY-SA 2.0; code GPL-2.0-or-later
OSV / GitHub Advisory Database - DRUPAL-CONTRIB-2021-028 - CC BY-SA 2.0; code GPL-2.0-or-later
Vulnerability history: drupal/entity_embed
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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