CVE-2026-107262
Medium
Description
Advanced File System turns Drupal's file storage into a manageable, observable and maintainable subsystem. The Advanced Filesystem: Backup submodule does not sufficiently validate certain requests. This may allow an attacker to trick an authenticated user into performing unintended actions through a Cross-Site Request Forgery (CSRF) vulnerability. The vulnerability is mitigated by the fact that `advanced_filesystem_backup` module must be enabled.
SeverityMedium
CVSS5.3
Exploit probability—
ProductDrupal/advanced Filesystem
PublishedOct 7, 2026
First seenOct 7, 2026
Weakness typeCWE-352Cross-site request forgery (CSRF)
How to fix
Update
- drupal/advanced_filesystem1.0.28 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| drupal/advanced_filesystemPackagist:https://packages.drupal.org/8 | v < 1.0.28 | 1.0.28 |
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