EUVD-2026-41208
GHSA-7h62-6v23-v8fm
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Authenticated user with a specific volume permission (PR:L) sends a network request (AV:N/AC:L/UI:N); impact is destructive deletion of peer data, giving I:H with no confidentiality and no distinct availability-service impact.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Broken authorization in Craft CMS lets a low-privilege authenticated user destroy other users' assets on a shared volume. AssetsController::actionDeleteFolder() checks only the deleteAssets:<volume-uid> permission for the target folder but never enforces deletePeerAssets:<volume-uid>, while the underlying Assets::deleteFoldersByIds() cascades deletion to every descendant folder and asset regardless of who uploaded them. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated Craft CMS account (PR:L) that has been granted the deleteAssets:<volume-uid> / folder-management permission on a volume that is SHARED with other users, and that volume must actually contain peer assets (files uploaded by other users). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N, base 7.1) is internally consistent with the description: network-reachable, low-complexity, requiring low privileges (PR:L - an authenticated user with folder-management rights) and no user interaction, with high integrity impact from destructive deletion and no confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A contributor with folder-management rights on a shared media volume issues a delete-folder request against a parent folder that also contains images uploaded by other editors. Because actionDeleteFolder never checks deletePeerAssets, the cascading deletion removes every peer asset and subfolder in that tree, destroying colleagues' content the attacker was never authorized to touch. … |
| Remediation | Upgrade to the patched releases: Craft CMS 4.17.15 for the 4.x line or 5.9.22 for the 5.x line, per vendor advisory GHSA-7h62-6v23-v8fm (https://github.com/craftcms/cms/security/advisories/GHSA-7h62-6v23-v8fm); the fix is implemented in commit b4e08977f0c9bdf002a77f9f6d1346cd55ac0598. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Craft CMS instances and document current versions (4.x vs 5.x). …
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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