CVE-2020-20269

A specially crafted Markdown document could cause the execution of malicious JavaScript code in Caret Editor before 4.0.0-rc22

published January 22, 2021

CVSS
—
EPSS
5%
Percentile
92.0
In the wild
Unconfirmed
What it is

⚠️ A cleverly crafted Markdown file can sneak in malicious JavaScript right under your nose! 🤯 Think of it like a recipe card that, instead of listing ingredients, includes a secret command to start a kitchen fire. The Markdown is the card, and if someone isn't careful, they might just follow that recipe straight into trouble! If an attacker successfully exploits this vulnerability, they could execute harmful JavaScript code, potentially compromising user data or taking control of the application. It could lead to uncomfortable situations—like finding out your favorite kitchen isn't safe anymore!

Put simply

Think of it like a recipe card that, instead of listing ingredients, includes a secret command to start a kitchen fire. The Markdown is the card, and if someone isn't careful, they might just follow that recipe straight into trouble! This vulnerability allows specially crafted Markdown documents to execute malicious JavaScript in Caret Editor versions before 4.0.0-rc22. The flaw lies in the way the editor processes these documents, failing to sanitize input properly.

What to do

If an attacker successfully exploits this vulnerability, they could execute harmful JavaScript code, potentially compromising user data or taking control of the application. It could lead to uncomfortable situations—like finding out your favorite kitchen isn't safe anymore! To protect yourself, update Caret Editor to the latest version (4.0.0-rc22 or higher) immediately. Regularly review any Markdown files before opening, especially from untrusted sources. A little caution goes a long way! You've got this! Keep your software updated and you'll be a security hero in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04887 · 92.0th percentile
Published
2021-01-22T18:42Z
EPSS history
Timeline
  • 22 JAN 18:42Z
    A specially crafted Markdown document could cause the execution of malicious JavaScript code in Caret Editor before 4.0.0-rc22
    cvelistv5