CVE-2025-9856

MediumCVSS 6.4/10Last modified Oct 7, 2026

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.

Metrics

CVSS 3.1 6.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
popupbuilder	Popup Builder – Create highly converting, mobile friendly marketing popups.	<= 4.4.1

References

Timeline

Published: Dec 13, 2025
Last modified: Oct 7, 2026
NVD status: Deferred

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