Stored Cross-Site Scripting Vulnerability in Show Posts Plugin for WordPress
CVE-2026-4022

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Show Posts List – Easy Designs, Filters And More
Vendor
CVE Published:
21 March 2026

What is CVE-2026-4022?

The Show Posts plugin for WordPress is susceptible to Stored Cross-Site Scripting (XSS) due to inadequate input sanitization and output escaping of the 'post_type' shortcode attribute in the 'swiftpost-list' shortcode. This vulnerability can be exploited by authenticated users with contributor-level access or higher, allowing them to inject malicious scripts. Once compromised, any user accessing the affected pages may unknowingly execute the injected scripts, leading to potential data theft or further site compromise.

Affected Version(s)

Show Posts list – Easy designs, filters and more 0 <= 1.1.0

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/show-posts-sho...
https://plugins.trac.wordpress.org/browser/show-posts-sho...

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

zakaria
.