CVE-2025-9856

Description

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'sg_popup' shortcode in all versions up to, and including, 4.4.1 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.

PUBLISHED Reserved 2025-09-02 | Published 2025-12-13 | Updated 2025-12-15 | Assigner Wordfence

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Timeline

Credits

Naoya Takahashi finder

References

www.wordfence.com/...-3fe1-44e0-9fda-97b288abf735?source=cve

plugins.trac.wordpress.org/....0/com/helpers/AdminHelper.php

plugins.trac.wordpress.org/...com/classes/popups/SGPopup.php

plugins.trac.wordpress.org/changeset/3384281

cve.org (CVE-2025-9856)

nvd.nist.gov (CVE-2025-9856)

Download JSON

Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.