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CVE-2025-42605

Improper Access Control Vulnerability in Meon Bidding Solutions

9.3 Critical

This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.

Successful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
None

Exploit likelihood

0.49%Up 0.3 points since Apr 23, 2025
90%50%10%1%

What each source reports

CVE List Score used 9.3

Improper Access Control Vulnerability in Meon Bidding Solutions

This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.

Successful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.

Record
CVE-2025-42605
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
Weakness
CWE-639
Updated
2026-11-02
EUVDEUVD-2025-12240 9.3

This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.

Successful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.

Record
EUVD-2025-12240
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-26g6-6369-5jmc 9.3

This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on...

This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.

Successful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.

Record
GHSA-26g6-6369-5jmc
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-639
Updated
2026-11-02
NVD 9.3

This vulnerability exists in Meon Bidding Solutions due to improper authorization controls on certain API endpoints for the initiation, modification, or cancellation operations. An authenticated remote attacker could exploit this vulnerability by manipulating parameter in the API request body to gain unauthorized access to other user accounts.

Successful exploitation of this vulnerability could allow remote attacker to perform authorized manipulation of data associated with other user accounts.

Record
CVE-2025-42605
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-639
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-42605 is a critical vulnerability (CVSS 9.3) in Meon Bidding Solutions, published April 23, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. No source names a fixed version.

References

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