What the vulnerability does
01Description
The Slideshow Wp plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sswpid' attribute of the 'sswp-slide' shortcode in all versions up to, and including, 1.1. This is 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
Slideshow WP versions 1.1 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has scope change, meaning injected code can affect other users or site functionality beyond the vulnerable component. Low-privileged accounts can exploit this without user interaction.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that executes in other users' browsers or affects site functionality.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors or admins; potential for credential theft, malware distribution, or site defacement.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privileged WordPress account (e.g., contributor or subscriber role).
Key dates
06Disclosure timeline
February 11, 2026
CVE published
April 8, 2026
Record updated
