CVE-2026-80203

Critical

Description

The getgrav/grav-plugin-api plugin before 1.0.18 does not enforce API-key scope in the requireNotSuperTarget() function in UsersController.php across seven sensitive user-management endpoints. The check uses isSuperAdmin() on the acting account rather than verifying whether the specific API key carries super authority (via isSuperWithinScope()). As a result, an API key scoped below full super authority but belonging to a super-admin account can act against other super-admin accounts—disabling their 2FA, deleting their avatar, minting new API keys under their identity, or deleting their existing API keys.

SeverityCritical

CVSS9.8

Exploit probability—

Product

Grav

PublishedAug 26, 2026

First seenAug 26, 2026

Weakness typeCWE-863Incorrect authorization

How to fix

Update

getgrav grav1.0.18 or later

Vendor advisories

github.com/getgrav/grav/security/advisories/GHSA-94q7-vrqr-cx5v

Affected products

Product	Affected versions	Fixed in
getgrav grav	v < 1.0.18	1.0.18

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