---
id: CVE-2025-13889
title: >-
  The Simple Nivo Slider plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting via the 'id' shortcode parameter in all versions up to, and
  including, 0.5.6 due to insufficient input sanitization and output escaping
summary: >-
  The Simple Nivo Slider plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting via the 'id' shortcode parameter in all versions up to, and
  including, 0.5.6 due to insufficient input sanitization and output escaping.
  This makes …
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: '2025-12-12'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T20:10:01.970'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-13889'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/simple-nivo-slider/tags/0.5.6/simple-nivo-slider.php#L208
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/simple-nivo-slider/trunk/simple-nivo-slider.php#L208
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/0c1c343c-ef16-4468-a983-0dc9fd152dd5?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00271
epssPercentile: 0.17664
ingestedAt: '2026-10-07T20:46:46.878Z'
---

## Overview

The Simple Nivo Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' shortcode parameter in all versions up to, and including, 0.5.6 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.