SB2020021405 - Cross-site scripting in dojox package for Dojo



SB2020021405 - Cross-site scripting in dojox package for Dojo

Published: February 14, 2020

Security Bulletin ID SB2020021405
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Cross-site scripting (CVE-ID: CVE-2019-10785)

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 "dojox.xmpp.util.xmlEncode" method only encodes the first occurrence of each character, not all of them. 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.

PoC:

"&&".replace("&", "&") == "&&"


Remediation

Install update from vendor's website.