---
id: CVE-2025-12650
title: >-
  The Simple post listing plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the 'class_name' parameter in the postlist shortcode
  in all versions up to, and including, 0.2
summary: >-
  The Simple post listing plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the 'class_name' parameter in the postlist shortcode
  in all versions up to, and including, 0.2. This is due to insufficient input
  sanitization …
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-2025-12650'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/simple-post-listing/tags/0.2/simple-post-listing.php#L77
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/dfdebeab-89f6-49b8-a38f-de2a8df7a7e8?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.0018
epssPercentile: 0.06906
ingestedAt: '2026-10-07T20:46:46.872Z'
---

## Overview

The Simple post listing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class_name' parameter in the postlist shortcode in all versions up to, and including, 0.2. This is 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 via mouse interaction.

## Remediation

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