CVE-2020-4080 Cross-site scripting in HCL Verse

Medium 6.1 Published Updated

An unauthenticated attacker can execute arbitrary scripts in a victim's browser via stored XSS in HCL Verse, potentially stealing authentication credentials.

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-2020-4080?

CVE-2020-4080 is a medium-severity cross-site scripting vulnerability in HCL Verse, published on 18 Dec 2020. 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

HCL Verse v10 and v11 is susceptible to a Stored Cross-Site Scripting (XSS) vulnerability due to improper handling of message content. An unauthenticated remote attacker could exploit this vulnerability using specially-crafted markup to execute script in a victim's web browser within the security context of the hosting Web site and/or steal the victim's cookie-based authentication credentials.

Weakness: CWE-79

Which versions are affected by CVE-2020-4080?

It affects 1 product.

Products include Hcltech Domino.

How do I fix CVE-2020-4080?

No fix has been published for CVE-2020-4080 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-2020-4080 being exploited?

There is no known exploitation of CVE-2020-4080 in the wild and no public exploit code.

Sources

Also known as GHSA-3wq6-8f7g-92vm.

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