---
id: CVE-2025-11827
title: >-
  The Oboxmedia Ads plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting via the 'before_widget' and 'after_widget' parameters of the
  oboxads-ad-widget shortcode in all versions up to, and including, 1.9.8
summary: >-
  The Oboxmedia Ads plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting via the 'before_widget' and 'after_widget' parameters of the
  oboxads-ad-widget shortcode in all versions up to, and including, 1.9.8. This
  is due to insu…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2025-10-22'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:10:00.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-11827'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/oboxmedia-ads/tags/1.9.8/includes/oboxads-ad-widget.php#L156
    label: security@wordfence.com
  - url: 'https://wordpress.org/plugins/oboxmedia-ads'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/1d8b79cc-287e-420b-8eb8-6345a62e9fb9?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00231
epssPercentile: 0.12629
ingestedAt: '2026-09-30T23:29:32.440Z'
---

## Overview

The Oboxmedia Ads plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'before_widget' and 'after_widget' parameters of the oboxads-ad-widget shortcode in all versions up to, and including, 1.9.8. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

## Remediation

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