CVE-2020-8034 Cross-site scripting in n/a

Medium 6.1 Published Updated

Reflected XSS in Gollem allows attackers to hijack victim webmail accounts via malicious URLs.

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
Available

What is CVE-2020-8034?

CVE-2020-8034 is a medium-severity cross-site scripting vulnerability in n/a, published on 18 May 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

Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.

Weakness: CWE-79

Which versions are affected by CVE-2020-8034?

It affects 2 products.

Products include Horde Gollem, Horde Groupware.

How do I fix CVE-2020-8034?

Upgrade to a fixed version.

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-2020-8034 being exploited?

There is no known exploitation of CVE-2020-8034 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2020-8034, DLA-2229-1, GHSA-4653-jj47-h6j5, UBUNTU-CVE-2020-8034.

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