---
id: CVE-2018-25248
title: >-
  MyBB Downloads Plugin 2.0.3 contains a persistent cross-site scripting
  vulnerability that allows regular members to inject malicious scripts through
  the download title field
summary: >-
  MyBB Downloads Plugin 2.0.3 contains a persistent cross-site scripting
  vulnerability that allows regular members to inject malicious scripts through
  the download title field. Attackers can submit a new download with
  HTML/JavaScript code …
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: mybb
product: mybb_downloads
affected:
  - mybb_downloads = 2.0.3
published: '2026-04-04'
updated: '2026-07-20'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-25248'
references:
  - url: 'https://community.mybb.com/mods.php?action=view&pid=854'
    label: disclosure@vulncheck.com
  - url: 'https://www.exploit-db.com/exploits/44400'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/mybb-downloads-plugin-persistent-xss-via-downloads-php
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00225
epssPercentile: 0.13452
ingestedAt: '2026-07-21T16:51:41.617Z'
---

## Overview

MyBB Downloads Plugin 2.0.3 contains a persistent cross-site scripting vulnerability that allows regular members to inject malicious scripts through the download title field. Attackers can submit a new download with HTML/JavaScript code in the title parameter, which executes when administrators validate the download in downloads.php.

## Affected

- `mybb_downloads = 2.0.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.