CVE-2023-39703 Cross-site scripting in n/a

Medium 6.1 Published Updated

Attackers can execute arbitrary code by tricking users into opening a crafted Markdown file in the Typora editor.

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-2023-39703?

CVE-2023-39703 is a medium-severity cross-site scripting vulnerability in n/a, published on 1 Sep 2023. 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

A cross site scripting (XSS) vulnerability in the Markdown Editor component of Typora v1.6.7 allows attackers to execute arbitrary code via uploading a crafted Markdown file.

Weakness: CWE-79

Which versions are affected by CVE-2023-39703?

It affects 1 product.

Products include Typora Typora.

How do I fix CVE-2023-39703?

No fix has been published for CVE-2023-39703 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-2023-39703 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39703 exists.

Sources

Also known as GHSA-wjw8-8f46-9qxh.

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