CVE-2014-3995 Djblets Cross-site scripting Vulnerability

Medium 4.3 Published Updated

Remote attackers can inject arbitrary web script or HTML via user display names in Djblets, requiring an upgrade to mitigate.

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-2014-3995?

CVE-2014-3995 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Jun 2014. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Cross-site scripting (XSS) vulnerability in gravatars/templatetags/gravatars.py in Djblets before 0.7.30 and 0.8.x before 0.8.3 for Django allows remote attackers to inject arbitrary web script or HTML via a user display name.

Weakness: CWE-79

Which versions are affected by CVE-2014-3995?

5 open source packages ship an affected version, including djblets and Djblets. It affects 1 product.

PackageAffectedFixed in
djblets PyPIAll versions0.7.30, 0.8.3
djblets PyPIAll versions0.7.30
djblets PyPIFrom 0.80.8.3
Djblets PyPIAll versions0.7.30
Djblets PyPIFrom 0.80.8.3

Products include Reviewboard Djblets.

How do I fix CVE-2014-3995?

Upgrade djblets to a fixed version for your release line: 0.7.30 or 0.8.3.

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-2014-3995 being exploited?

There is no known exploitation of CVE-2014-3995 in the wild and no public exploit code.

Sources

Also known as GHSA-4xf6-xr96-7vmp, PYSEC-2014-79.

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