CVE-2020-15885 MunkiReport Cross-Site Scripting (XSS) Filter Bypass On Comment

Medium 5.4 Published Updated

Remote attackers can inject arbitrary web script or HTML via the comment module in MunkiReport, potentially leading to session hijacking or malicious actions.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2020-15885?

CVE-2020-15885 is a medium-severity cross-site scripting vulnerability in n/a, published on 23 Jul 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A Cross-Site Scripting (XSS) vulnerability in the comment module before 4.0 for MunkiReport allows remote attackers to inject arbitrary web script or HTML by posting a new comment.

Weakness: CWE-79

Which versions are affected by CVE-2020-15885?

2 open source packages ship an affected version, including munkireport/comment. It affects 1 product.

PackageAffectedFixed in
munkireport/comment PackagistAll versions4.0
munkireport/comment PackagistAll versions4.0

Products include Munkireport Project Comment.

How do I fix CVE-2020-15885?

Upgrade munkireport/comment to 4.0 or later.

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-2020-15885 being exploited?

There is no known exploitation of CVE-2020-15885 in the wild and no public exploit code.

Sources

Also known as GHSA-vc4f-2g7f-pmqr.

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