#VU53055 Cross-site scripting in Joplin
Published: May 11, 2021
Joplin
Joplinapp
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when processing "<NOSCRIPT>" tags. A remote attacker can bypass implemented filters 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.