SB2020061706 - Cross-site scripting in highcharts JavaScript library

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: N/A)

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 the "<a>" tag for text formats is translated into a "tspan" with "onclick". A remote authenticated 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

Install update from vendor's website.

References

• https://snyk.io/vuln/SNYK-JS-HIGHCHARTS-571995
• https://github.com/highcharts/highcharts/issues/13559
• https://jsfiddle.net/highcharts/zvnhej9L/