CVE-2019-15532 Cross-Site Scripting in cyberchef

Medium 6.1 Published Updated

An attacker can execute arbitrary scripts in the victim's browser via the TextEncodingBruteForce operation in CyberChef.

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-2019-15532?

CVE-2019-15532 is a medium-severity cross-site scripting vulnerability in n/a, published on 26 Aug 2019. 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

CyberChef before 8.31.2 allows XSS in core/operations/TextEncodingBruteForce.mjs.

Weakness: CWE-79

Which versions are affected by CVE-2019-15532?

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

PackageAffectedFixed in
cyberchef npmAll versions8.31.3
cyberchef npmAll versions8.31.3

Products include Gchq Cyberchef.

How do I fix CVE-2019-15532?

Upgrade cyberchef to 8.31.3 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-2019-15532 being exploited?

There is no known exploitation of CVE-2019-15532 in the wild and no public exploit code.

Sources

Also known as GHSA-jp6r-xcjj-5h7r.

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