What the vulnerability does
01Description
The Splide Carousel Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'url' Block Attribute in all versions up to, and including, 1.7.1 due to insufficient input sanitization and output escaping. 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. The injected payload must be published before it executes for site visitors, which requires an editor or administrator to approve and publish the contributor's post.
Explanation of Vulnerability in Simple Terms
02Summary
The Splide Carousel Block contains a cross-site scripting (XSS) vulnerability in versions up to 1.7.1. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, potentially affecting site visitors and administrators. The vulnerability has a changed scope, meaning the impact extends beyond the vulnerable component itself.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers when they view affected pages.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other site visitors and admins; potential for credential theft, malware distribution, or site defacement.
Conditions required to exploit
05Prerequisites
Attacker must be authenticated with low-level user privileges; no user interaction required from victims.
Key dates
06Disclosure timeline
May 27, 2026
CVE published
May 27, 2026
Record updated
