vulnerability
WordPress Plugin: optinmonster: CVE-2021-39325: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Sep 20, 2021 | May 15, 2025 | Apr 29, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Sep 20, 2021
Added
May 15, 2025
Modified
Apr 29, 2026
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.
Solution
optinmonster-plugin-cve-2021-39325
References
Rapid7 Labs
2026 Global Threat Landscape Report
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