Chris Castaldo has discovered some vulnerabilities in 3CX Phone System, which can be exploited by malicious people to conduct cross-site scripting attacks.

Input passed to the "fName" and "fPassword" form parameters in login.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in the context of an affected site.

These vulnerabilities are confirmed in 3CX Phone System Free Edition version 6.1793. Other versions may also be affected.

Solution
Update to version 7.0.

Provided and/or discovered by
Chris Castaldo

Changelog
Further details available in Customer Area

Deep Links
Links available in Customer Area