PT-2026-63977 · Getgrav · Grav

Izumi-Hyun · CVE-2026-65897 · Published 2026-07-23 · Updated 2026-07-23

Mitre

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Grav API Plugin versions before 1.0.10 fail to validate the groups field in InvitationsController::create(), allowing authenticated api.users.write callers to assign invited accounts to groups that grant api.super permissions. Attackers can create invitation records with elevated group membership, and when accepted, the new account gains full super-admin API access without the inviter holding those permissions.

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2026-65897

Affected Products

Grav

References · 5

• https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv · Vendor Advisory
• https://github.com/getgrav/grav/commit/345e79e3abf8c15f80e612a09f6643300071324b · Patch
• https://github.com/getgrav/grav/commit/f9438d4e71389b1041ac60b69b0b5714ecfa3bdd · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-65897 · Security Note
• https://vulncheck.com/advisories/grav-api-plugin-privilege-escalation-via-invitations-groups · Note