What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
Show Posts list versions up to 1.1.0 contain a stored cross-site scripting (XSS) vulnerability. An attacker with low-level user privileges can inject malicious scripts that execute in the browsers of other users viewing the affected content. The vulnerability affects the scope beyond the vulnerable component, potentially compromising site security and user data.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers when they view the affected content.
Potential impact on your site
04Site Impact
Compromised user accounts, stolen session tokens, or malware distribution to site visitors.
Conditions required to exploit
05Prerequisites
Attacker must have low-level user account access; no user interaction required from victims.
Key dates
06Disclosure timeline
March 21, 2026
CVE published
April 8, 2026
Record updated
