{"id":"CVE-2025-9856","title":"The Popup Builder – Create highly converting, mobile friendly marketing popups","summary":"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 in…","severity":"medium","cvss":6.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","cwe":["CWE-79"],"published":"2025-12-13","updated":"2026-10-07","sourceUpdated":"2026-10-07T19:10:00.160","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-9856","references":[{"url":"https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.0/com/classes/popups/SGPopup.php#L1368","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/popup-builder/tags/4.4.0/com/helpers/AdminHelper.php#L438","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset/3384281","label":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/beb6b26a-3fe1-44e0-9fda-97b288abf735?source=cve","label":"security@wordfence.com"}],"tags":["nvd"],"epss":0.00299,"epssPercentile":0.20638,"ingestedAt":"2026-10-07T19:44:15.659Z","slug":"CVE-2025-9856","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":35.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}