CVE-2024-12756 Avaya Spaces HTML injection (HTMLi) Vulnerability

High 7.3 Published Updated

Attackers can inject HTML into Avaya Spaces to disclose sensitive information or modify page content viewed by users.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2024-12756?

CVE-2024-12756 is a high-severity cross-site scripting vulnerability in Avaya Spaces, published on 11 Feb 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

An HTML Injection vulnerability in Avaya Spaces may have allowed disclosure of sensitive information or modification of the page content seen by the user.

Weakness: CWE-79, CWE-1287

Which versions are affected by CVE-2024-12756?

It affects 1 product.

Products include Avaya Spaces.

How do I fix CVE-2024-12756?

No fix has been published for CVE-2024-12756 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-2024-12756 being exploited?

There is no known exploitation of CVE-2024-12756 in the wild and no public exploit code.

Sources

Also known as GHSA-mfvh-6rjh-8jrp.

Is CVE-2024-12756 in your software?

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