What’s Vulnerable › Vulnerabilities

CVE-2019-9591

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-03-06 · updated 2026-06-17
• Weakness: CWE-79

Description

A reflected Cross-site scripting (XSS) vulnerability in ShoreTel Connect ONSITE before 19.49.1500.0 allows remote attackers to inject arbitrary web script or HTML via the brandUrl parameter.

Affected products

• Mitel Connect Onsite: before 19.49.1500.0 — fixed in 19.49.1500.0

How to fix

Upgrade to a fixed version: Mitel Connect Onsite 19.49.1500.0. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/152431/ShoreTel-Connect-ONSITE-Cross-Site-Scripting-Session-Fixation.html
• https://github.com/Ramikan/Vulnerabilities/blob/master/Shoretel%20Connect%20Multiple%20Vulnerability
• https://www.exploit-db.com/exploits/46666/
• http://packetstormsecurity.com/files/152431/ShoreTel-Connect-ONSITE-Cross-Site-Scripting-Session-Fixation.html
• https://github.com/Ramikan/Vulnerabilities/blob/master/Shoretel%20Connect%20Multiple%20Vulnerability
• https://www.exploit-db.com/exploits/46666/

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