---
id: CVE-2026-86193
title: >-
  grav-plugin-api before 1.0.20 fails to validate group-inherited super
  permissions in user-management guards, allowing non-super user managers to
  modify super-admin accounts
summary: >-
  grav-plugin-api before 1.0.20 fails to validate group-inherited super
  permissions in user-management guards, allowing non-super user managers to
  modify super-admin accounts. Attackers with api.access and api.users.write can
  patch passwor…
severity: high
cvss: 8.7
cvssVector: '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'
cwe:
  - CWE-863
vendor: getgrav
product: grav-plugin-api
affected:
  - grav-plugin-api < 1.0.20
published: '2026-09-05'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:05:53.177'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86193'
references:
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-vv8m-jqpm-38x4'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/grav-api-plugin-authentication-bypass-via-group-inherited-super
    label: disclosure@vulncheck.com
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-vv8m-jqpm-38x4'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00364
epssPercentile: 0.27685
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-08T13:16:12.939796Z'
cvssSource: cna
ingestedAt: '2026-09-06T08:52:35.034Z'
---

## Overview

grav-plugin-api before 1.0.20 fails to validate group-inherited super permissions in user-management guards, allowing non-super user managers to modify super-admin accounts. Attackers with api.access and api.users.write can patch password fields on group-super accounts to gain full administrative control.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.