CVE-2021-39325

OptinMonster <= 2.6.0 Reflected Cross-Site Scripting

Published Sep 20, 2021 CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Update to version 2.6.1 or newer.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2021-25686 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Mar 31, 2025, 6:21 PM
Reserved
Aug 20, 2021, 12:00 AM
Status
Modified
Published
Sep 20, 2021, 8:15 PM
Modified
Jun 17, 2026, 4:03 AM