CVE-2020-19952 Cross-site scripting in n/a

Medium 6.1 Published Updated

Remote attackers can execute arbitrary code via crafted payloads or malicious Markdown files in the jbt Markdown Editor rendering engine.

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-2020-19952?

CVE-2020-19952 is a medium-severity cross-site scripting vulnerability in n/a, published on 11 Aug 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

Cross Site Scripting (XSS) vulnerability in Rendering Engine in jbt Markdown Editor thru commit 2252418c27dffbb35147acd8ed324822b8919477, allows remote attackers to execute arbirary code via crafted payload or opening malicious .md file.

Weakness: CWE-79

Which versions are affected by CVE-2020-19952?

It affects 1 product.

Products include Jbt Live \(Github-Flavored\) Markdown Editor.

How do I fix CVE-2020-19952?

No fix has been published for CVE-2020-19952 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-2020-19952 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-19952 exists.

Sources

Also known as GHSA-7xj3-g76j-972q.

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