This vulnerability exists in the Meon KYC solutions due to transmission of sensitive data in plain text within the response payloads of certain API endpoints. An authenticated remote attacker could exploit this vulnerability by intercepting API response that contains unencrypted sensitive information belonging to other users.
Successful exploitation of this vulnerability could allow remote attacker to impersonate the target user and gain unauthorized access to the user account.
CVE ID: CVE-2025-42603
CVSS Base Severity: HIGH
CVSS Base Score: 8.7
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N
Vendor: Meon
Product: KYC solutions
EPSS Score: 0.1% (probability of being exploited)
EPSS Percentile: 28.32% (scored less or equal to compared to others)
EPSS Date: 2025-05-22 (when was this score calculated)