CVE-2020-8292 Cross-site scripting in Rocket.Chat server

Medium 5.4 Published Updated

An attacker can execute arbitrary scripts in a victim's browser via drag-and-drop in Rocket.Chat message boxes, potentially leading to session hijacking.

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

What is CVE-2020-8292?

CVE-2020-8292 is a medium-severity cross-site scripting vulnerability in Rocket.chat Rocket.chat, published on 21 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Rocket.Chat server before 3.9.0 is vulnerable to a self cross-site scripting (XSS) vulnerability via the drag & drop functionality in message boxes.

Weakness: CWE-79

Which versions are affected by CVE-2020-8292?

It affects 1 product.

Products include Rocket.chat Rocket.chat.

How do I fix CVE-2020-8292?

No fix has been published for CVE-2020-8292 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-2020-8292 being exploited?

There is no known exploitation of CVE-2020-8292 in the wild and no public exploit code.

All Rocket.chat Rocket.chat vulnerabilities

Sources

Also known as GHSA-388j-hgw2-75wf.

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