---
id: CVE-2026-15649
title: >-
  The Powerkit – Supercharge your WordPress Site plugin for WordPress is
  vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all
  versions up to, and including, 3.1.0 due to insufficient input sanitization
  and output escap…
summary: >-
  The Powerkit – Supercharge your WordPress Site plugin for WordPress is
  vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all
  versions up to, and including, 3.1.0 due to insufficient input sanitization
  and output escap…
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: '2026-08-01'
updated: '2026-08-01'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15649'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/powerkit/tags/3.0.9/modules/basic-elements/public/class-powerkit-basic-elements-public.php#L83
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/powerkit/tags/3.0.9/modules/basic-elements/templates/progressbars.php#L109
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/powerkit/tags/3.1.0/modules/basic-elements/public/class-powerkit-basic-elements-public.php#L83
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/powerkit/tags/3.1.0/modules/basic-elements/templates/progressbars.php#L109
    label: security@wordfence.com
  - url: 'https://plugins.trac.wordpress.org/changeset/3629599/powerkit'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/f86c6ada-112b-4b1f-b1ac-7dd4920953c8?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00349
epssPercentile: 0.2573
ingestedAt: '2026-08-02T05:17:48.102Z'
---

## Overview

The Powerkit – Supercharge your WordPress Site plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 3.1.0 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.