CVE-2025-12245 chatwoot Widget IFrameHelper.js initPostMessageCommunication origin validation

Medium 6.9 Published Updated

Attackers can bypass origin validation in the Chatwoot widget's postMessage communication, potentially enabling unauthorized interactions.

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-2025-12245?

CVE-2025-12245 is a medium-severity vulnerability in chatwoot, published on 27 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was identified in chatwoot up to 4.7.0. This vulnerability affects the function initPostMessageCommunication of the file app/javascript/sdk/IFrameHelper.js of the component Widget. The manipulation of the argument baseUrl leads to origin validation error. Remote exploitation of the attack is possible. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-346, CWE-345

Which versions are affected by CVE-2025-12245?

It affects 1 product.

Products include Chatwoot Chatwoot.

How do I fix CVE-2025-12245?

No fix has been published for CVE-2025-12245 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-12245 being exploited?

There is no known exploitation of CVE-2025-12245 in the wild and no public exploit code.

Sources

Also known as GHSA-hgg8-54gw-8v33.

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