CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
43.0%
In some situations, the Image module does not correctly check access to image files not stored in the standard public files directory when generating derivative images using the image styles system.
Access to a non-public file is checked only if it is stored in the “private” file system. However, some contributed modules provide additional file systems, or schemes, which may lead to this vulnerability.
This vulnerability is mitigated by the fact that it only applies when the site sets (Drupal 9) $config['image.settings']['allow_insecure_derivatives']
or (Drupal 7) $conf['image_allow_insecure_derivatives']
to TRUE. The recommended and default setting is FALSE, and Drupal core does not provide a way to change that in the admin UI.
Some sites may require configuration changes following this security release. Review the release notes for your Drupal version if you have issues accessing files or image styles after updating.
github.com/advisories/GHSA-xh3v-6f9j-wxw3
github.com/drupal/core/commit/2d5f47fc8a166115f56c2330a81e83abe22445cf
github.com/drupal/core/commit/e2fbf63700819cb470a1be425798f1a3f2020116
github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2022-25275.yaml
nvd.nist.gov/vuln/detail/CVE-2022-25275
www.drupal.org/sa-core-2022-012