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CVE-2026-87915

HIGH 7.2 CVSS 3.1
Published
September 18, 2026
Last modified
September 18, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Description

The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via values[Name] Parameter in all versions up to, and including, 1.24.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The wp_kses sanitization applied on output is insufficient in this context because HTML entities within allowed attribute values survive normalization intact and are later evaluated by the jQuery(link.attr('href')) sink in wp-admin/js/common.js when a contextual help tab anchor is clicked.

Affected WordPress components

  • Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder Plugin · popup-maker
    Confirmed match Active
    Up to and including 1.24.0
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • danieliser Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder — Up to and including 1.24.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Abstract/Database.php#L359
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Admin/Subscribers/Table.php#L281
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/ListTable.php#L1408
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Newsletters.php#L273
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Newsletters.php#L59
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Newsletters.php#L74
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3690634/popup-maker/trunk/classes/Admin/Subscribers/Table.php
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&new=3690634%40popup-maker%2Ftags%2F1.25.0&old=3648112%40popup-maker%2Ftags%2F1.24.0
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/ea8b1eee-2e3f-4d61-b815-4ea0aaa188b5?source=cve
  • nvd.nist.gov Official NVD record