#VU23879 Cross-site scripting in phpMyChat-Plus - CVE-2019-19908
Published: January 2, 2020 / Updated: June 17, 2021
Vulnerability identifier: #VU23879
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear
CVE-ID: CVE-2019-19908
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
phpMyChat-Plus
phpMyChat-Plus
Software vendor:
ciprianmp
ciprianmp
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
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.