What the vulnerability does
01Description
The Slideshow Gallery LITE plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'alwaysauto' shortcode attribute in all versions up to, and including, 1.8.5. 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 Gallery LITE versions 1.8.5 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has a changed scope, meaning the impact can extend beyond the vulnerable component itself. An attacker with low-level site access can inject code that affects other users or site functionality.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers or affect site functionality.
Potential impact on your site
04Site Impact
Authenticated users with low privileges can inject scripts affecting other users' sessions or site behavior.
Conditions required to exploit
05Prerequisites
Attacker must have a low-level authenticated account on the site; no user interaction required.
Key dates
06Disclosure timeline
June 18, 2026
CVE published
