Vulnerability · Published Feb 9, 2026 · Assigned by GitHub_M
CVE-2026-25497Craft has a GraphQL Asset Mutation Privilege Escalation
High 8.6
In plain English
A high-severity authorization bypass via user-controlled key in cms from craftcms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Craft is a platform for creating digital experiences. In Craft versions from 4.0.0-RC1 to before 4.17.0-beta.1 and 5.9.0-beta.1, there is a Privilege Escalation vulnerability in Craft CMS’s GraphQL API that allows an authenticated user with write access to one asset volume to escalate their privileges and modify/transfer assets belonging to any other volume, including restricted or private volumes to which they should not have access. The saveAsset GraphQL mutation validates authorization against the schema-resolved volume but fetches the target asset by ID without verifying that the asset belongs to the authorized volume. This allows unauthorized cross-volume asset modification and transfer. This vulnerability is fixed in 4.17.0-beta.1 and 5.9.0-beta.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | craftcms/cms | 5.9.0-beta.1 | GHSA-fxp3-g6gw-4r4v |
| Packagist | craftcms/cms | 4.17.0-beta.1 | GHSA-fxp3-g6gw-4r4v |
Affected products (as reported)
Weakness: CWE-639 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
References
- https://github.com/craftcms/cms/security/advisories/GHSA-fxp3-g6gw-4r4v x_refsource_CONFIRM
- https://github.com/craftcms/cms/commit/ac7edf868c1a81fd9c4dc49d3b3edf1cce113409 x_refsource_MISC
- https://github.com/craftcms/cms/releases/tag/5.8.22 x_refsource_MISC