EUVD-2026-20465
GHSA-5q87-jcg7-9vrx
GHSA-rcw8-rm48-wjhg
GHSA-wqwp-c8g7-73q2
GHSA-x727-7jhm-cmg5
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
3Description
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.
Analysis
Stored Cross-Site Scripting in Page Builder: Pagelayer WordPress plugin versions up to 2.0.8 allows authenticated attackers with Contributor-level or higher privileges to inject arbitrary JavaScript into page content via the Button widget's Custom Attributes field. The vulnerability bypasses an incomplete XSS filter that blocks common event handlers but fails to block all variants, enabling persistent script execution whenever affected pages are viewed. …
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External POC / Exploit Code
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