PT-2024-28851 · Optinmonster · The Popup Builder By Optinmonster

Wesley · Published 2024-05-25 · Updated 2025-07-16 · CVE-2024-4045

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions The Popup Builder by OptinMonster – WordPress Popups for Optins, Email Newsletters and Lead Generation plugin for WordPress versions up to, and including, 2.16.1

Description The issue is related to Stored Cross-Site Scripting via the campaign id parameter due to insufficient input sanitization and output escaping. This allows 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.

Recommendations For versions up to, and including, 2.16.1, update to a version that addresses the insufficient input sanitization and output escaping issue to prevent Stored Cross-Site Scripting attacks. As a temporary workaround, consider restricting access to the campaign id parameter to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2024-4045

Affected Products

The Popup Builder By Optinmonster

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2024-4045 · Security Note
• https://plugins.trac.wordpress.org/changeset/3087905 · Patch
• https://osv.dev/vulnerability/CVE-2024-4045 · Vendor Advisory
• https://plugins.trac.wordpress.org/browser/optinmonster/tags/2.16.0/OMAPI/Elementor/Widget.php#L532 · Note
• https://t.me/cvenotify/129185 · Telegram Post
• https://t.me/cvenotify/81137 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/b4dfeb49-38d3-495d-af96-d67a29b339fa?source=cve · Note
• https://t.me/cvenotify/81016 · Telegram Post