CVE-2026-87915

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.

• CWE-79

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

Published

Sep 18, 2026

Last Modified

Sep 18, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-87909The WP Photo Album Plus plugin for WordPress is vulnerable t…7.5
• CVE-2026-8791The Booking System Trafft plugin for WordPress is vulnerable…6.4
• CVE-2026-87910When tarfile extracts a link on a system that doesn't suppor…5.7
• CVE-2026-87911An OS command injection weakness in the read-only enforcemen…9.6
• CVE-2026-87912A missing S3 bucket ownership verification in the AWS Securi…5.9
• CVE-2026-87913A missing S3 bucket ownership verification in the AWS Securi…5.9
• CVE-2026-87916The WPBot WordPress plugin before 8.6.0 does not perform an…5.3
• CVE-2026-87917The MC4WP: Mailchimp for WordPress plugin for WordPress is v…6.1
• CVE-2026-87918The WPBot WordPress plugin before 8.5.7 does not perform an…5.3
• CVE-2026-87919The Product XML Feed Manager for WooCommerce WordPress plug…4.9
• CVE-2026-87921A vulnerability was identified in Rizwan17 inventory-managem…7.3
• CVE-2026-87922A security flaw has been discovered in Rizwan17 inventory-ma…7.3