---
id: "CVE-2026-111882"
kind: "vulnerability"
aliases: ["CVE-2026-111882"]
title: "phpMyFAQ: SSO login skips TOTP two-factor check, granting admin sessions"
severity: "high"
cvss: 8.6
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["entra-id", "keycloak", "package", "php", "phpmyfaq", "self-hosted", "sso"]
not_affected_if: ["local-login-only", "no-sso", "no-totp-accounts"]
published_at: "2026-10-17T19:16:29+00:00"
first_seen_at: "2026-10-23T21:57:14+00:00"
updated_at: "2026-10-25T03:00:03+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111882", "first_seen_at": "2026-10-23T21:57:14+00:00"}]
---

# phpMyFAQ: SSO login skips TOTP two-factor check, granting admin sessions

phpMyFAQ's Keycloak and Entra ID single sign-on callbacks let an IdP-authenticated user finish login without the TOTP two-factor step. An attacker with a valid or phished IdP identity linked to a 2FA-enabled account gets a fully authenticated session, including administrator accounts.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version: `phpMyFAQ` version in the admin panel or `composer show phpmyfaq/phpmyfaq`; affected are 3.2.0-alpha up to before 4.1.9 and 4.2.0-alpha before 4.2.0-beta
- Check whether OIDC SSO via Keycloak or Entra ID is enabled in the phpMyFAQ configuration
- unknown

## Fix

- Upgrade phpMyFAQ to `4.1.9` or later on the 4.1 line, or to `4.2.0-beta` or later on the 4.2 line
- Until patched, disable Keycloak or Entra ID SSO login or enforce a separate second factor at the IdP
- Rotate passwords and review admin accounts for sessions you did not create

## Timeline

- 2026-10-23T21:57:14+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111882

## From the sources

phpMyFAQ 3.2.0-alpha before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows IdP-authenticated users to skip TOTP two-factor authentication through the Keycloak and Entra ID SSO callbacks. Attackers holding a valid or phished IdP identity linked to a 2FA-enabled account can complete the OIDC flow and obtain a fully authenticated session, including administrator accounts.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_