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Advisories

Grav API Plugin 1.0.9 Privilege Escalation via Invitations groups

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severity
high
date
Affecting

  • grav >= 0, < 1.0.10

CWE
  • CWE-269 Improper Privilege Management
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
izumi-hyun
Description
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.

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