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CVE-2026-42844
Published: May 12, 2026
Modified: May 13, 2026
PUBLISHED
Description
Grav is a file-based Web platform. In Grav 2.0.0-beta.2, a low-privileged authenticated API user with api.media.write can abuse /api/v1/blueprint-upload to write an arbitrary YAML file into user/accounts/, then log in as the newly created account with api.super privileges. This results in full administrative compromise of the Grav API. This vulnerability is fixed in API 1.0.0-beta.17.
| Vendor | Product | Versions |
|---|---|---|
getgrav | grav | affected 2.0.0-beta.2 |
References
https://github.com/getgrav/grav/security/advisories/GHSA-6xx2-m8wv-756h
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