CVE-2014-3743 Multiple Content Injection Vulnerabilities in marked

Medium 6.1 Published Updated

Remote attackers can inject arbitrary web script or HTML via GFM codeblocks or JavaScript URLs in the Marked module.

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-2014-3743?

CVE-2014-3743 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Jan 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

Multiple cross-site scripting (XSS) vulnerabilities in the Marked module before 0.3.1 for Node.js allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) gfm codeblocks (language) or (2) javascript url's.

Weakness: CWE-79

Which versions are affected by CVE-2014-3743?

2 open source packages ship an affected version, including marked. It affects 1 product.

PackageAffectedFixed in
marked npmAll versions0.3.1
marked npmAll versions0.3.1

Products include Marked Project Marked.

How do I fix CVE-2014-3743?

Upgrade marked to 0.3.1 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-2014-3743 being exploited?

There is no known exploitation of CVE-2014-3743 in the wild and no public exploit code.

Sources

Also known as CVE-2014-1850, DEBIAN-CVE-2014-3743, GHSA-9cw2-jqp5-7x39.

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