CVE-2026-42844 — Grav: Low-privileged API users can create super-admin accounts via blueprint-upload
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 YA…
Published: 2026-05-12 · CVSS: 8.7 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7