Stored Cross-Site Scripting Vulnerability in Services Section Block Plugin for WordPress
CVE-2026-11402

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Services Section Block – Showcase Service Details In Grid Or Columns
Vendor
CVE Published:
18 June 2026

What is CVE-2026-11402?

The Services Section Block plugin for WordPress contains a vulnerability that allows authenticated users with contributor-level access or higher to perform stored cross-site scripting (XSS) attacks. This vulnerability arises from inadequate input sanitization and output escaping of the 'link' Block Attribute in all versions up to and including 1.4.4. Attackers can inject malicious web scripts that remain persistent within HTML comments in the post content. These scripts activate when users visit the affected page, executing through both the primary service link anchor and an additional title-wrapped anchor link when the linkIn option is enabled. This poses a significant risk as it compromises the security and integrity of the website.

Affected Version(s)

Services Section Block – Showcase Service Details in Grid or Columns 0 <= 1.4.4

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/services-secti...
https://plugins.trac.wordpress.org/browser/services-secti...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Philipp Doblhofer
.