CVE-2026-11402
Received Received - Intake
Stored XSS in Services Section Block WordPress Plugin

Publication date: 2026-06-18

Last updated on: 2026-06-18

Assigner: Wordfence

Description
The Services Section Block – Showcase Service Details in Grid or Columns plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'link' Block Attribute in all versions up to, and including, 1.4.4 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. The payload persists inside HTML comments in post_content, bypassing wp_kses_post sanitization at save time, and executes via both the primary service link anchor and a secondary title-wrapped anchor when the linkIn option is set to 'title'.
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Meta Information
Published
2026-06-18
Last Modified
2026-06-18
Generated
2026-06-18
AI Q&A
2026-06-18
EPSS Evaluated
N/A
NVD
CVE-2026-11402
EUVD
EUVD-2026-37849
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wp_showcase_service_details showcase_service_details to 1.4.4 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

The Services Section Block – Showcase Service Details in Grid or Columns plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in all versions up to and including 1.4.4. This vulnerability arises because the plugin does not properly sanitize or escape input in the 'link' Block Attribute.

Authenticated users with contributor-level access or higher can inject malicious web scripts into pages. These scripts are stored persistently inside HTML comments in the post content, bypassing the usual WordPress sanitization functions.

When other users access the infected pages, the malicious scripts execute via the primary service link anchor or a secondary title-wrapped anchor if the 'linkIn' option is set to 'title'.

Impact Analysis

This vulnerability allows attackers with contributor-level access to inject malicious scripts that execute in the browsers of users who view the infected pages.

  • It can lead to theft of user credentials or session tokens.
  • It may enable attackers to perform actions on behalf of users without their consent.
  • It can damage the trustworthiness and integrity of the affected website.
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