#VU49388 Cross-site scripting in zonote - CVE-2020-35717

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks via a crafted note, with resultant Remote Code Execution (because nodeIntegration in webPreferences is true).

The vulnerability exists due to insufficient sanitization of user-supplied data within a specially crafted note. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

External links

• https://github.com/hmartos/cve-2020-35717
• https://github.com/zonetti/zonote
• https://medium.com/bugbountywriteup/remote-code-execution-through-cross-site-scripting-in-electron-f3b891ad637
• https://www.electronjs.org/apps/zonote