PT-2026-26869 · WordPress · Show Posts List

Zakaria · Published 2026-03-21 · Updated 2026-03-21 · CVE-2026-4022

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Show Posts list – Easy designs, filters and more plugin for WordPress versions through 1.1.0

Description The Show Posts list plugin for WordPress is susceptible to Stored Cross-Site Scripting. This occurs due to inadequate input sanitization and output escaping of user-supplied attributes, specifically within the post type shortcode attribute of the swiftpost-list shortcode. Authenticated attackers with contributor-level access or higher can inject arbitrary web scripts into pages. These scripts will then execute when a user accesses the compromised page.

Recommendations Versions prior to and including 1.1.0 should be updated.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-4022

Affected Products

Show Posts List

References · 12

• https://nvd.nist.gov/vuln/detail/CVE-2026-4022 · Security Note
• https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/tags/1.1.0/post-shortcode.php#L119 · Note
• https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/trunk/post-shortcode.php#L103 · Note
• https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/trunk/post-shortcode.php#L21 · Note
• https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/tags/1.1.0/post-shortcode.php#L43 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/fc6634bc-4427-44b6-bf77-d97d5b49e82f?source=cve · Note
• https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/trunk/post-shortcode.php#L119 · Note
• https://twitter.com/CVEnew/status/2035237227287257167 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2035266471639609816 · Twitter Post
• https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/trunk/post-shortcode.php#L43 · Note
• https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/tags/1.1.0/post-shortcode.php#L21 · Note
• https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/tags/1.1.0/post-shortcode.php#L103 · Note