---
id: CVE-2026-15010
title: >-
  The bbp Style Pack plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting in versions up to, and including, 6.4.5 via the Topic Form
  Additional Fields feature
summary: >-
  The bbp Style Pack plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting in versions up to, and including, 6.4.5 via the Topic Form
  Additional Fields feature. This is due to insufficient input sanitization in
  bsp_topic_fields…
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: '2026-07-11'
updated: '2026-07-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-15010'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/bbp-style-pack/tags/6.4.5/includes/functions_topic_fields.php#L146
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/bbp-style-pack/tags/6.4.5/includes/functions_topic_fields.php#L235
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3601461%40bbp-style-pack&new=3601461%40bbp-style-pack
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/f898ab34-2d63-458d-b19b-4e2b6f4a0f3b?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00331
epssPercentile: 0.26556
ingestedAt: '2026-07-11T23:16:20.815Z'
---

## Overview

The bbp Style Pack plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 6.4.5 via the Topic Form Additional Fields feature. This is due to insufficient input sanitization in bsp_topic_fields_form_save() (which writes $_POST['bsp_topic_fields_label{n}'] directly to post meta via update_post_meta() with no filtering) and missing output escaping in bsp_topic_content_append_topic_fields() (which concatenates the stored meta value into an HTML <span> and echoes it via apply_filters/echo without esc_html()). This makes it possible for authenticated attackers, with Subscriber-level access and above (who have bbPress topic-creation privileges), to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page, including unauthenticated visitors.

## Remediation

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