What’s Vulnerable › Vulnerabilities
CVE-2026-4022: Show Posts list <= 1.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
- Severity: medium (CVSS 6.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-21 · updated 2026-06-17
- Weakness: CWE-79
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.
Affected products
References
- https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/tags/1.1.0/post-shortcode.php#L103
- https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/tags/1.1.0/post-shortcode.php#L119
- https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/tags/1.1.0/post-shortcode.php#L21
- https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/tags/1.1.0/post-shortcode.php#L43
- https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/trunk/post-shortcode.php#L103
- https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/trunk/post-shortcode.php#L119
- https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/trunk/post-shortcode.php#L21
- https://plugins.trac.wordpress.org/browser/show-posts-shortcodes/trunk/post-shortcode.php#L43
- https://www.wordfence.com/threat-intel/vulnerabilities/id/fc6634bc-4427-44b6-bf77-d97d5b49e82f?source=cve
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