CVE-2024-4045 MEDIUM

CVE-2024-4045: Popup Builder by OptinMonster – WordPress Popups for Optins, Email Newsletters and Lead Generation <= 2.16.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

Vendor Smub
Product Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation
Weakness CWE-79 · XSS
Published May 25, 2024
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Popup Builder by OptinMonster – WordPress Popups for Optins, Email Newsletters and Lead Generation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘campaign_id’ parameter in versions up to, and including, 2.16.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Key dates

02Disclosure timeline

May 25, 2024 CVE published
April 8, 2026 Record updated

Related vulnerabilities

04Related CVE

CVE-2022-0503 Multisite Content Copier/Updater < 2.1.2 - Reflected Cross-Site Scripting CVE-2024-49502 Reflected XSS in Setup Wizard, HTTP Proxy credentials pane in spacewalk-web CVE-2025-67628 WordPress Review Disclaimer plugin <= 2.0.3 - Cross Site Scripting (XSS) vulnerability CVE-2024-20514 Cisco Evolved Programmable Network Manager and Cisco Prime Infrastructure Stored Cross-Site Scripting Vulnerability CVE-2024-43359 XSS vulnerabilities in montagereview