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TI-2025-27737 Aliases CVE-2025-42602GHSA-j7h5-c7xg-wp5c

Improper Authentication Vulnerability in Meon KYC solutions

Priority LOW 36CWE-384Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Spoofing, Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-384 and CWE-613.

Summary

This vulnerability exists in Meon KYC solutions due to improper handling of access and refresh tokens in certain API endpoints of authentication process. A remote attacker could exploit this vulnerability by intercepting and manipulating the responses through API request body leading to unauthorized access of other user accounts.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00426 37th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MeonKYC solutions1.1—No fix listedCNA
  • KYC solutions VendorMeon Affected 1.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-42602
  2. 2026-10-03 Alias added: GHSA-j7h5-c7xg-wp5c

References

Advisory 1

  • TI-2025-27740 Improper Access Control Vulnerability in Meon Bidding Solutions CVSS 4.0CRITICAL 9.3
  • TI-2025-27738 Information Disclosure Vulnerability in Meon KYC solutions CVSS 4.0HIGH 8.7
  • TI-2025-27735 Brute Force Attack Vulnerability in Meon KYC solutions CVSS 4.0HIGH 8.2
  • TI-2025-27739 Detailed Error Response Vulnerability in Meon KYC solutions CVSS 4.0MEDIUM 6.9
  • TI-2025-27736 Captcha Bypass Vulnerability in Meon KYC solutions CVSS 4.0HIGH 8.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences