CVE-2019-6803 Cross-site scripting in n/a

Medium 6.1 Published Updated

An attacker can execute arbitrary code via XSS in the Typora markdown editor's left outline bar.

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
None listed

What is CVE-2019-6803?

CVE-2019-6803 is a medium-severity cross-site scripting vulnerability in n/a, published on 25 Jan 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

typora through 0.9.9.20.3 beta has XSS, with resultant remote command execution, via the left outline bar.

Weakness: CWE-79

Which versions are affected by CVE-2019-6803?

It affects 1 product.

Products include Typora Typora.

How do I fix CVE-2019-6803?

No fix has been published for CVE-2019-6803 yet. Limit exposure of the affected software until one is available.

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-2019-6803 being exploited?

There is no known exploitation of CVE-2019-6803 in the wild and no public exploit code.

Sources

Also known as GHSA-rrf4-wf89-47rv.

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