What the vulnerability does
01Description
The Page Builder: Pagelayer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Button widget's Custom Attributes field in all versions up to, and including, 2.0.8. This is due to an incomplete event handler blocklist in the 'pagelayer_xss_content' XSS filtering function, which blocks common, but not all, event handlers. 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
Pagelayer versions up to 2.0.8 contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts affecting other users. The vulnerability has a changed scope, meaning the impact extends beyond the vulnerable component itself. Site administrators should update to a version newer than 2.0.8 to mitigate this risk.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers and affect site functionality.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors; data exposure and site defacement are possible.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account (e.g., contributor or subscriber role) on the site.
Key dates
06Disclosure timeline
April 8, 2026
CVE published
April 8, 2026
Record updated
