CVE-2026-2509

medium

Description

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/915c119d-2bae-4ea6-babb-7e8e99054cd0?source=cve

https://plugins.trac.wordpress.org/changeset/3479046/

https://plugins.trac.wordpress.org/browser/pagelayer/trunk/main/shortcode_functions.php#L689

https://plugins.trac.wordpress.org/browser/pagelayer/trunk/main/functions.php#L1293

Details

Source: Mitre, NVD

Published: 2026-04-08

Updated: 2026-04-24

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.0001