CVE-2025-36116 IBM Db2 Mirror for i cross-site websocket hijacking

Medium 6.3 Published 23 Jul 2025 Updated 18 Aug 2025

An unauthenticated attacker can hijack WebSocket connections in the IBM Db2 Mirror for i GUI to sniff data and perform unauthorized operations.

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-2025-36116?

CVE-2025-36116 is a medium-severity cross-site scripting vulnerability in IBM Db2 Mirror for i, published on 23 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Db2 Mirror for i 7.4, 7.5, and 7.6 GUI is affected by cross-site WebSocket hijacking vulnerability. By sending a specially crafted request, an unauthenticated malicious actor could exploit this vulnerability to sniff an existing WebSocket connection to then remotely perform operations that the user is not allowed to perform.

Weakness: CWE-1385

Which versions are affected by CVE-2025-36116?

It affects 1 product.

Products include Ibm Db2 Mirror for I.

How do I fix CVE-2025-36116?

No fix has been published for CVE-2025-36116 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2025-36116 being exploited?

There is no known exploitation of CVE-2025-36116 in the wild and no public exploit code.

Sources

Also known as GHSA-7w4f-rr94-7cwp.