Silverstripe SiteTree Creation Permission Vulnerability
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-863.
Summary
A vulnerability exists in the permission validation for SiteTree object creation. By default user permissions are not validated by the SiteTree::canCreate method, unless overridden by user code or via the configuration system. This vulnerability will allow users, or unauthenticated guests, to create new SiteTree objects in the database. This vulnerability is present when such users are given CMS access via other means, or if there is another mechanism (such as RestfulServer module) which allows model editing and relies on model-level permission checks. This vulnerability is restricted to the creation of draft or live pages, and does not allow users to edit, publish, or unpublish existing pages. All users should upgrade as soon as possible.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | silverstripe/cms (Packagist) | 3.0.0 to before 3.0.12 | 3.0.12 | Patch available | GHSA-3mm9-2p44-rw39 |
| — | silverstripe/cms (Packagist) | 3.1.0 to before 3.1.11 | 3.1.11 | Patch available | GHSA-3mm9-2p44-rw39 |
- silverstripe/cms (Packagist) Vendor— Affected 3.0.0 to before 3.0.12 Fixed in 3.0.12 Patch available GHSA-3mm9-2p44-rw39
- silverstripe/cms (Packagist) Vendor— Affected 3.1.0 to before 3.1.11 Fixed in 3.1.11 Patch available GHSA-3mm9-2p44-rw39
Remediation
- Fix · GHSA-3mm9-2p44-rw39 silverstripe/cms (Packagist) Fixed in 3.0.12 Advisory →
- Fix · GHSA-3mm9-2p44-rw39 silverstripe/cms (Packagist) Fixed in 3.1.11 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-3mm9-2p44-rw39
References
Other 5
- https://github.com/silverstripe/silverstripe-cms/commit/3df41e1176385215f15fffb04fcba033a5151fb4
- https://github.com/silverstripe/silverstripe-cms/commit/64955e57d1239975183f47d3ac8c3e801ddbf122
- https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/cms/SS-2015-008-1.yaml
- https://github.com/silverstripe/silverstripe-cms
- https://www.silverstripe.org/software/download/security-releases/ss-2015-008-sitetree-creation-permission-vulnerability
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences