---
id: "CVE-2016-20100"
kind: "vulnerability"
aliases: ["CVE-2016-20100"]
title: "WordPress Memphis Documents Library: unauthenticated path traversal reads wp-config.php"
severity: "high"
cvss: 8.7
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "self-hosted", "wordpress"]
not_affected_if: ["plugin-not-installed", "version-3.1.6-or-later"]
published_at: "2026-10-20T21:17:13+00:00"
first_seen_at: "2026-10-23T21:57:21+00:00"
updated_at: "2026-10-23T22:37:14+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-20100", "first_seen_at": "2026-10-23T21:57:21+00:00"}]
---

# WordPress Memphis Documents Library: unauthenticated path traversal reads wp-config.php

The Memphis Documents Library WordPress plugin before 3.1.6 lets anyone send a GET request with traversal sequences in the mdocs-img-preview parameter to read arbitrary files. Attackers can download wp-config.php and obtain database credentials.

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

## How to check

Check the installed plugin version in the WordPress admin plugins list or in wp-content/plugins/mdocs-documents-library (readme or main plugin file).

## Fix

Update the Memphis Documents Library plugin to 3.1.6 or later; if it cannot be updated, remove it, and rotate database credentials if exposure is suspected.

## Timeline

- 2026-10-23T21:57:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2016-20100

## From the sources

Memphis Documents Library plugin for WordPress before 3.1.6 contains a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files via the mdocs-img-preview parameter. Attackers can send GET requests with traversal sequences to mdocs_img_preview() in mdocs-downloads.php to download wp-config.php containing database credentials. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-22.

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