---
id: CVE-2025-13740
title: >-
  The Lightweight Accordion plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the plugin's `lightweight-accordion` shortcode in all
  versions up to, and including, 1.5.20 due to insufficient input sanitization
  and output…
summary: >-
  The Lightweight Accordion plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the plugin's `lightweight-accordion` shortcode in all
  versions up to, and including, 1.5.20 due to insufficient input sanitization
  and output…
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: '2025-12-15'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T19:10:00.160'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-13740'
references:
  - url: 'https://plugins.trac.wordpress.org/changeset/3413649/'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/f117f713-e2f1-4803-87f7-14b1576d823b?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.0018
epssPercentile: 0.06907
ingestedAt: '2026-10-07T19:44:15.676Z'
---

## Overview

The Lightweight Accordion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `lightweight-accordion` shortcode in all versions up to, and including, 1.5.20 due to insufficient input sanitization and output escaping on user supplied attributes. 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.