---
id: "CVE-2026-111892"
kind: "vulnerability"
aliases: ["CVE-2026-111892"]
title: "phpMyFAQ: missing rate limits let anyone flood password reset emails"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "php", "phpmyfaq", "self-hosted"]
not_affected_if: ["endpoints-not-exposed", "patched-version"]
published_at: "2026-10-17T19:16:30+00:00"
first_seen_at: "2026-10-23T21:57:14+00:00"
updated_at: "2026-10-25T03:42:18+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111892", "first_seen_at": "2026-10-23T21:57:14+00:00"}]
---

# phpMyFAQ: missing rate limits let anyone flood password reset emails

phpMyFAQ 4.2.0-alpha before 4.2.0-beta does not effectively rate limit its unauthenticated password update and reset endpoints. An unauthenticated attacker can send unlimited reset requests, flooding a registered user's inbox and exhausting mailer and server resources.

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

## How to check

- Check the installed version, e.g. `grep -i version phpmyfaq/inc/Constants.php` or the admin dashboard, and see whether it is in the range 4.2.0-alpha up to but not including 4.2.0-beta.
- Confirm whether the password reset form at user/password/reset is reachable from the internet.

## Fix

- Upgrade phpMyFAQ to `4.2.0-beta` or later, as the description states the flaw is fixed there.
- unknown whether a configuration-only mitigation exists.

## Timeline

- 2026-10-23T21:57:14+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111892

## From the sources

phpMyFAQ 4.2.0-alpha before 4.2.0-beta lacks effective rate limiting on the unauthenticated user/password/update and user/password/reset endpoints. Unauthenticated attackers can send unlimited reset requests to flood a registered user's inbox with reset emails, exhausting mailer and server resources.

---

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