---
id: CVE-2026-77995
title: >-
  Joomla Extension - miniorange.com - Arbitrary account takeover in miniOrange
  OAuth Client < 3.2.0, OAuth Single Sign-On – OIDC SSO < 1.2.2, Login with
  Keycloak OAuth Single Sign-On (SSO) < 1.2.2, Single Sign-On for Educational
  Institutes…
summary: >-
  Joomla Extension - miniorange.com - Arbitrary account takeover in miniOrange
  OAuth Client < 3.2.0, OAuth Single Sign-On – OIDC SSO < 1.2.2, Login with
  Keycloak OAuth Single Sign-On (SSO) < 1.2.2, Single Sign-On for Educational
  Institutes…
severity: critical
cvss: 10
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'
cwe:
  - CWE-639
vendor: miniorange.com
product: miniOrange OAuth Client (free) extension for Joomla
affected:
  - miniorange_oauth_client_free_extension_for_joomla 1.0.0-3.1.9
  - >-
    oauth_single_sign-on_oidc_sso_login_with_azure_ad_free_extension_for_joomla
    1.0.0-1.2.1
  - >-
    login_with_keycloak_oauth_single_sign-on_sso_free_extension_for_joomla
    1.0.0-1.2.1
  - >-
    single_sign-on_for_educational_institutes_free_extension_for_joomla
    1.0.0-1.2.1
published: '2026-08-24'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T11:17:44.423'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77995'
references:
  - url: 'https://www.miniorange.com/'
    label: security@joomla.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-08-24T17:25:41.162522Z'
cvssSource: cna
epss: 0.00295
epssPercentile: 0.22403
ingestedAt: '2026-09-08T15:33:26.955Z'
---

## Overview

Joomla Extension - miniorange.com - Arbitrary account takeover in miniOrange OAuth Client < 3.2.0, OAuth Single Sign-On – OIDC SSO < 1.2.2, Login with Keycloak OAuth Single Sign-On (SSO) < 1.2.2, Single Sign-On for Educational Institutes < 1.2.2 - The manipulation of a cookie value allows actors to login as arbitrary accounts, including admins.

## Remediation

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