Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-42844 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/getgrav/grav/security/advisories/GHSA-6xx2-m8wv-756h CISA-ADPExploitVendor Advisory
https://github.com/getgrav/grav/security/advisories/GHSA-6xx2-m8wv-756h [email protected]ExploitVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-269Improper Privilege Management[email protected]
CWE-434Unrestricted Upload of File with Dangerous Type[email protected]

Affected Products

ProductVersions
getgrav grav
2.0.0 beta2

CPE

  • cpe:2.3:a:getgrav:grav:2.0.0:beta2:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-42844
NVD Published Date:
May 12, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-42844 Details - Not Deferred