CVE-2026-65897

Published: Jul 23, 2026Modified: Aug 28, 2026Deferred

8.7

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

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.

Related CWEs

CWE-269

Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

References (5)

https://github.com/getgrav/grav-plugin-api/commit/f9438d4e71389b1041ac60b69b0b5714ecfa3bdd

Source: disclosure@vulncheck.com

https://github.com/getgrav/grav/commit/345e79e3abf8c15f80e612a09f6643300071324b

Source: disclosure@vulncheck.com

https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/grav-api-plugin-privilege-escalation-via-invitations-groups

Source: disclosure@vulncheck.com

https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.