title: OptinMonster <= 2.6.4 Unprotected REST-API Endpoints
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.
problem types: CWE-285 Improper Authorization
affected:
{
product: OptinMonster
vendor: OptinMonster
versions:
lessThanOrEqual: 2.6.4, status: affected, version: 2.6.4, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 8.2
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
version: 3.1
]
solutions: Update to version 2.6.5, or newer.