OptinMonster <= 2.6.0 - Reflected Cross-Site Scripting

6.1
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2021-39325
CVSS 6.1 (Medium)
Publicly Published September 20, 2021
Last Updated January 22, 2024
Researcher Mariia Aleksandrova

Description

The OptinMonster WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to insufficient input validation in the load_previews function found in the ~/OMAPI/Output.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.6.0.

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Vulnerability Details for Popup Builder by OptinMonster – WordPress Popups for Optins, Email Newsletters and Lead Generation

Software Type Plugin
Software Slug optinmonster (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.6.1, or a newer patched version
Affected Version
  • <= 2.6.0
Patched Version
  • 2.6.1

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