CVE-2020-19947 Cross-site scripting in n/a
A remote attacker can execute arbitrary code via the edit parameter in the Markdown Edit library due to a Cross Site Scripting vulnerability.
- 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-2020-19947?
CVE-2020-19947 is a critical cross-site scripting vulnerability in n/a, published on 16 Mar 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 vulnerability found in Markdown Edit allows a remote attacker to execute arbitrary code via the edit parameter of the webpage.
Weakness: CWE-79
Which versions are affected by CVE-2020-19947?
It affects 1 product.
Products include Markdown Edit Project Markdown Edit.
How do I fix CVE-2020-19947?
No fix has been published for CVE-2020-19947 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-2020-19947 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-19947 exists.
Sources
Also known as GHSA-2m4q-6966-v2q4.