Quick answers
- Is CVE-2026-50282 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-50282 being exploited in the wild.
- How severe is CVE-2026-50282?
- High severity, with a CVSS score of 4, published 2 July 2026.
- Which products and versions are affected?
- craftcms/cms (Packagist) ECOSYSTEM:introduced=5.0.0-RC1,fixed=5.9.21.
- Is there a fix for CVE-2026-50282?
- Yes. craftcms/cms (Packagist): upgrade to 5.9.21 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-50282 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-50282?
- Check whether you run craftcms/cms (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- craftcms/cms (Packagist): upgrade to 5.9.21 or later
composer require craftcms/cms:^5.9.21
Technical details
A missing authorization check exists in Craft CMS's `AssetsController::actionMoveFolder()`. When a folder move is initiated with the `force=true` parameter, the application fails to verify if the user has `deleteAssets` permissions for the destination volume or the specific conflicting folder. An attacker with low-level privileges (specifically `deleteAssets` on the source and `createFolders`/`saveAssets` on the destination) can overwrite and effectively delete any existing folder at the destination by triggering a name conflict. This affects both indexed folders via the Assets service and unindexed folders directly on the filesystem. The issue is patched in versions 4.17.14 and 5.9.21.
Affected products
- Pixel & Tonic Craft CMS >= 4.0.0-RC1, < 4.17.14; >= 5.0.0-RC1, < 5.9.21
Identifiers
- CVE-2026-50282
- GHSA-3w32-23wj-rxg3
Timeline
- 2026-05-29: disclosed: Initial disclosure to vendor
- 2026-07-02: advisory: GitHub Advisory published
- 2026-07-02: patched: Fixes released in versions 4.17.14 and 5.9.21
References
- https://api.github.com/users/davidbors-snyk
- https://github.com/davidbors-snyk
- https://api.github.com/users/davidbors-snyk/gists%7B/gist_id%7D
- https://api.github.com/users/davidbors-snyk/repos
- https://avatars.githubusercontent.com/u/240482518?v=4
- https://api.github.com/users/davidbors-snyk/events%7B/privacy%7D