---
id: "CVE-2026-111905"
kind: "vulnerability"
aliases: ["CVE-2026-111905"]
title: "phpMyFAQ: admin user API leaks any user's TOTP secret"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "php", "phpmyfaq", "self-hosted"]
not_affected_if: ["default-config"]
published_at: "2026-10-17T19:16:32+00:00"
first_seen_at: "2026-10-23T21:57:14+00:00"
updated_at: "2026-10-25T03:38:24+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111905", "first_seen_at": "2026-10-23T21:57:14+00:00"}]
---

# phpMyFAQ: admin user API leaks any user's TOTP secret

A flaw in the admin user-data endpoint returns any user's full record, including the live TOTP two-factor secret, without checking the caller's rights. A delegated administrator with user-management rights can read a SuperAdmin's secret and generate valid codes to bypass two-factor authentication.

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

## How to check

- Check the installed version with `composer show phpmyfaq/phpmyfaq` or the version shown in the admin panel; affected versions are 3.2.0 before 4.1.9 and 4.2.0-alpha before 4.2.0-beta.
- Review who holds user-management rights in the admin panel; unknown whether the sources list exact log or file checks.

## Fix

- Upgrade phpMyFAQ to `4.1.9` or later (or to `4.2.0-beta` or later on the 4.2 line).
- Rotate TOTP secrets for SuperAdmin accounts after upgrading if delegated admins had user-management rights before the fix; unknown whether the sources give a specific rotation procedure.

## Timeline

- 2026-10-23T21:57:14+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111905

## From the sources

phpMyFAQ 3.2.0 before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains an insecure direct object reference vulnerability in GET /admin/api/user/data/{userId}, which returns any user's full faquserdata row, including the live TOTP secret, without a SuperAdmin or protected-target check. Delegated administrators with user-management rights can read a SuperAdmin's TOTP secret and generate valid codes to bypass two-factor authentication.

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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_