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Case File

CVE-2021-39341

HIGH · CVSS 8.2 EPSS 21.93% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-11-01 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.2. It affects WordPress. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 21.9% probability of exploitation in the next 30 days.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-39341
Severity
HIGH
CVSS
8.2
EPSS
21.93%
WordPress

Original NVD Description

The OptinMonster WordPress plugin is vulnerable to sensitive information disclosure and unauthorized setting updates due to insufficient authorization validation via the logged_in_or_has_api_key function in the ~/OMAPI/RestApi.php file that can used to exploit inject malicious web scripts on sites with the plugin installed. This affects versions up to, and including, 2.6.4.

Related CVEs

Other vulnerabilities affecting the same vendor(s)