CVE-2025-66956 Missing authorization in n/a

Critical 9.9 Published Updated

Remote attackers can access and execute attachments in Asseco SEE Live components via computable URLs due to insecure access control.

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

What is CVE-2025-66956?

CVE-2025-66956 is a critical missing authorization vulnerability in n/a, published on 11 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Insecure Access Control in Contact Plan, E-Mail, SMS and Fax components in Asseco SEE Live 2.0 allows remote attackers to access and execute attachments via a computable URL.

Weakness: CWE-284

Which versions are affected by CVE-2025-66956?

How do I fix CVE-2025-66956?

No fix has been published for CVE-2025-66956 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-2025-66956 being exploited?

There is no known exploitation of CVE-2025-66956 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-798g-p7qc-9jv4.

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