CVE-2017-16962 Cross-site scripting in n/a

Medium 6.1 Published Updated

Stored XSS in CommuniGate Pro WebMail allows attackers to execute scripts via crafted calendar invites or emails, potentially leading to account takeover.

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-2017-16962?

CVE-2017-16962 is a medium-severity cross-site scripting vulnerability in n/a, published on 27 Nov 2017. 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

The WebMail components (Crystal, pronto, and pronto4) in CommuniGate Pro before 6.2.1 have stored XSS vulnerabilities via (1) the location or details field of a Google Calendar invitation, (2) a crafted Outlook.com calendar (aka Hotmail Calendar) invitation, (3) e-mail granting access to a directory that has JavaScript in its name, (4) JavaScript in a note name, (5) JavaScript in a task name, or (6) HTML e-mail that is mishandled in the Inbox component.

Weakness: CWE-79

Which versions are affected by CVE-2017-16962?

It affects 1 product.

Products include Communigate Communigate Pro.

How do I fix CVE-2017-16962?

No fix has been published for CVE-2017-16962 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-2017-16962 being exploited?

There is no known exploitation of CVE-2017-16962 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-3cqh-3p38-9v4j.

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