The WebMail components (Crystal, pronto, and pronto4) in CommuniGate Pro before 6.2.1…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:communigate:communigate_pro:*:*:*:*:*:*:*:* | before 6.2.1 | Vulnerable | Communigate |
- cpe:2.3:a:communigate:communigate_pro:*:*:*:*:*:*:*:* Versions before 6.2.1 Vulnerable ·Communigate
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-16962
- 2026-10-03 Alias added: GHSA-3cqh-3p38-9v4j
References
Exploit 1
More Communigate Pro vulnerabilities
- TI-2018-13162 CommuniGate Pro 6.2 allows stored XSS via a message body in Pronto! Mail Composer, which… CVSS 3.0MEDIUM 6.1
Sources
- CVE-2017-16962 · CVE Program
- CVE-2017-16962 · NVD
- FIRST EPSS
- GHSA-3cqh-3p38-9v4j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences