Privilege Escalation Vulnerability in Craft CMS GraphQL API by Craft
CVE-2026-25497

8.6HIGH

Key Information:

Vendor

Craftcms

Status
Cms
Vendor
CVE Published:
9 February 2026

What is CVE-2026-25497?

Craft CMS versions from 4.0.0-RC1 to before 4.17.0-beta.1 and 5.9.0-beta.1 exhibit a vulnerability in their GraphQL API that permits an authenticated user with write access to one asset volume to escalate their privileges. This flaw enables such users to modify or transfer assets from other volumes, including restricted or private ones. The vulnerability arises from inadequate authorization checks in the saveAsset GraphQL mutation, which fails to ensure the targeted asset belongs to the user's authorized volume. As a result, this oversight may lead to unauthorized cross-volume asset manipulation. Users are encouraged to update to the patched versions 4.17.0-beta.1 or 5.9.0-beta.1 to mitigate this risk.

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Affected Version(s)

cms >= 5.0.0-RC1, < 5.8.22 < 5.0.0-RC1, 5.8.22

cms >= 4.0.0-RC1, < 4.17.0-beta.1 < 4.0.0-RC1, 4.17.0-beta.1

References

https://github.com/craftcms/cms/security/advisories/GHSA-...
x_refsource_CONFIRM
https://github.com/craftcms/cms/commit/ac7edf868c1a81fd9c...
x_refsource_MISC
https://github.com/craftcms/cms/releases/tag/5.8.22
x_refsource_MISC

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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