ID:5823 - Exploit for Cross-site scripting in phpMyChat-Plus - CVE-2019-19908

Link to public exploit:

Vulnerability 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 "pmc_username" parameter in "pass_reset.php" file. 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:

http://<localhost>/plus/pass_reset.php?L=english&pmc_username="><script>alert('xss')</script>

Remediation