CVE-2026-4022
Received Received - Intake
Stored XSS in Show Posts List WordPress Plugin

Publication date: 2026-03-21

Last updated on: 2026-03-21

Assigner: Wordfence

Description
The Show Posts list – Easy designs, filters and more plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_type' shortcode attribute in the 'swiftpost-list' shortcode in all versions up to, and including, 1.1.0 due to insufficient input sanitization and output escaping on user-supplied attributes. 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.
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Meta Information
Published
2026-03-21
Last Modified
2026-03-21
Generated
2026-06-16
AI Q&A
2026-03-21
EPSS Evaluated
2026-06-14
NVD
CVE-2026-4022
EUVD
EUVD-2026-14146
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
show_posts list to 1.1.0 (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 vulnerability exists in the Show Posts list – Easy designs, filters and more plugin for WordPress, specifically in the 'swiftpost-list' shortcode's 'post_type' attribute. It is a Stored Cross-Site Scripting (XSS) vulnerability caused by insufficient input sanitization and output escaping of user-supplied attributes.

This means that authenticated users with contributor-level access or higher can inject malicious web scripts into pages. These scripts will execute whenever any user accesses the affected page.

Impact Analysis

This vulnerability can allow attackers with contributor-level access to inject arbitrary scripts into web pages, which will run in the context of users visiting those pages.

  • It can lead to theft of user credentials or session tokens.
  • It can enable unauthorized actions on behalf of users.
  • It can compromise the integrity and trustworthiness of the affected website.
Compliance Impact

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Detection Guidance

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Mitigation Strategies

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