CVE-2026-50284 Craft CMS: Missing peer-permission check in `AssetsController::actionDeleteFolder` allows deletion of other users' assets
Low-privilege users with folder management rights can delete other users' assets due to a missing peer-permission check in the folder deletion endpoint.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-50284?
CVE-2026-50284 is a high-severity missing authorization vulnerability in craftcms cms, published on 1 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Craft CMS is a content management system (CMS). In versions 5.0.0-RC1 through 5.9.21 and 4.0.0-RC1 through 4.17.14, theAssetsController::actionDeleteFolder() only requires the deleteAssets:<volume-uid> permission for the target folder. It never enforces deletePeerAssets:<volume-uid>, even though Assets::deleteFoldersByIds() cascades deletion to every descendant folder and every asset inside, regardless of the uploader's assigned privileges. A low-privilege user who has been granted folder-management rights on a shared volume can therefore destroy assets uploaded by other users (peer assets), bypassing the per-asset peer-permission check that the sibling actionDeleteAsset endpoint correctly applies. This issue has been fixed in versions 4.17.15 and 5.9.22.
Weakness: CWE-862
Which versions are affected by CVE-2026-50284?
4 open source packages ship an affected version, including craftcms/cms.
| Package | Affected | Fixed in |
|---|---|---|
craftcms/cms Packagist | From 4.0.0-RC1 | 4.17.15 |
craftcms/cms Packagist | From 4.0.0-RC1 | 4.17.15 |
craftcms/cms Packagist | From 5.0.0-RC1 | 5.9.22 |
craftcms/cms Packagist | From 5.0.0-RC1 | 5.9.22 |
How do I fix CVE-2026-50284?
Upgrade craftcms/cms to a fixed version for your release line: 4.17.15 or 5.9.22.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-50284 being exploited?
There is no known exploitation of CVE-2026-50284 in the wild and no public exploit code.
Sources
Also known as GHSA-7h62-6v23-v8fm.