---
id: "CVE-2026-120658"
page: "https://infrastack.ai/live/CVE-2026-120658"
kind: "vulnerability"
aliases: ["CVE-2026-120658"]
title: "WordPress Download Manager plugin: stored cross-site scripting via file previews"
severity: "medium"
cvss: 6.4
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "Download Manager", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["download-manager", "package", "wordpress", "wp-plugin"]
not_affected_if: ["no-untrusted-authors", "plugin-not-installed"]
published_at: "2026-11-13T10:17:26+00:00"
first_seen_at: "2026-11-13T10:47:11+00:00"
updated_at: "2026-11-13T10:55:07+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-120658", "first_seen_at": "2026-11-13T10:47:11+00:00"}]
exploit_sources: []
---

# WordPress Download Manager plugin: stored cross-site scripting via file previews

Link for people: https://infrastack.ai/live/CVE-2026-120658 (this .md is for agents)

The Download Manager plugin for WordPress stores attacker-supplied script in the additional previews upload field and renders it without escaping. An author-level user can make scripts run in the browser of anyone who opens an affected page, such as an administrator.

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

## Affected

- vendor:Download Manager affected range not listed fixed no fixed version listed

## How to check

- Check the installed Download Manager plugin version in the WordPress admin under Plugins; versions up to and including `7.6.3` are affected.
- Review pages and downloads for injected script in previews if authors are not fully trusted.

## Timeline

- 2026-11-13T10:47:11+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-120658

## From the sources

The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'file[additional_previews][]' parameter in all versions up to, and including, 7.6.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The wpdm_sanitize_array() function strips HTML tags via wp_kses but leaves bare single quotes intact and calls stripslashes_deep() which defeats WordPress magic quotes protection, allowing a single-quote-based attribute breakout payload to be stored verbatim and later rendered without escaping.

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