#VU22289 Cross-site scripting in FusionPBX - CVE-2019-11408

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 passed via the "app/operator_panel/index_inc.php" file in the Operator Panel module. A remote attacker can initiate a call from outside of the network with a specially crafted caller ID number, 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://blog.gdssecurity.com/labs/2019/6/7/rce-using-caller-id-multiple-vulnerabilities-in-fusionpbx.html
• https://github.com/fusionpbx/fusionpbx/commit/391a23d070f3036d0c7760992f6970b0a76ee4d7