---
id: CVE-2025-11878
title: >-
  The ST Categories Widget plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the plugin's st-categories shortcode in versions less
  than, or equal to, 1.0.0
summary: >-
  The ST Categories Widget plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the plugin's st-categories shortcode in versions less
  than, or equal to, 1.0.0. This is due to insufficient input sanitization and
  output esca…
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: '2026-10-08'
sourceUpdated: '2026-10-08T11:10:00.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-11878'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/st-category-wp/tags/1.0.0/st-categories-wp.php#L176
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/0d127114-9c80-4722-953a-3ee1382b9f81?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00193
epssPercentile: 0.082
ingestedAt: '2026-10-08T11:31:27.488Z'
---

## Overview

The ST Categories Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's st-categories shortcode in versions less than, or equal to, 1.0.0. 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.

## Remediation

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