What’s Vulnerable › Vulnerabilities

CVE-2017-16962

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-11-27 · updated 2026-06-17
• Weakness: CWE-79

Description

The WebMail components (Crystal, pronto, and pronto4) in CommuniGate Pro before 6.2.1 have stored XSS vulnerabilities via (1) the location or details field of a Google Calendar invitation, (2) a crafted Outlook.com calendar (aka Hotmail Calendar) invitation, (3) e-mail granting access to a directory that has JavaScript in its name, (4) JavaScript in a note name, (5) JavaScript in a task name, or (6) HTML e-mail that is mishandled in the Inbox component.

Affected products

• Communigate Pro: before 6.2.1 — fixed in 6.2.1

How to fix

Upgrade to a fixed version: Communigate Pro 6.2.1. Check the vendor advisory for mitigations.

References

• https://packetstormsecurity.com/files/145095/communigatepro-xss.txt
• https://www.exploit-db.com/exploits/43177/
• https://packetstormsecurity.com/files/145095/communigatepro-xss.txt
• https://www.exploit-db.com/exploits/43177/

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