CVE-2025-42605 Improper Access Control Vulnerability in Meon Bidding Solutions

Critical 9.3 Published Updated

An authenticated attacker can manipulate API parameters to access and modify data belonging to other user accounts in Meon Bidding Solutions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-42605?

CVE-2025-42605 is a critical missing authorization vulnerability in Meon Bidding Solutions, published on 23 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-639

Which versions are affected by CVE-2025-42605?

How do I fix CVE-2025-42605?

No fix has been published for CVE-2025-42605 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-42605 being exploited?

There is no known exploitation of CVE-2025-42605 in the wild and no public exploit code.

Sources

Also known as GHSA-26g6-6369-5jmc.

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