VULNERABILITY INTELLIGENCE

CVE-2021-39325

CVSS score6.1 MEDIUM

EPSS probability0.91%

CISA KEVNot currently listed

Published2021-09-20

Last modified2026-06-17

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

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.

Weakness classification

security@wordfence.com: CWE-79

Primary references

security@wordfence.com — Patch, Third Party Advisory
security@wordfence.com — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory