CVE-2026-42609: Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a business logic vulnerability in the Grav Admin Panel allows a low-privileged user (with only user…

PriorityP352high8.1CVSS 3.1

AVNACLPRLUINSUCNIHAH

EPSS

0.46%

36.7th percentile

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a business logic vulnerability in the Grav Admin Panel allows a low-privileged user (with only user creation permissions) to overwrite existing accounts, including the primary administrator. By creating a new user with a username that already exists, the system updates the existing account's metadata and permissions instead of rejecting the request. This leads to a Denial of Service (DoS) on administrative functions and Privilege De-escalation of the root account. This vulnerability is fixed in 2.0.0-beta.2.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
getgrav	grav	< 2.0.0-beta.2	2.0.0-beta.2
getgrav	grav	<= 1.8.0	—
getgrav	grav	—	—
getgrav	grav	>= 0 < 2.0.0-beta.2	2.0.0-beta.2

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