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Vulnerability record · CVE-2019-9591 · published 6 March 2019

CVE-2019-9591: Mitel connect onsite cross-site scripting vulnerability

Mitel · Connect Onsite

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.

6.1 CVSS 3.1 Medium EPSS 5.3% · top 7.7% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score, v2 4.3
5.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 6 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-5779Mitel connect onsite code injection vulnerabilityA vulnerability in the conferencing component of Mitel Connect ONSITE, versions R1711-PREM and earlier, and Mitel ST 14.2, release GA28 and earlier, …EPSS 2.7%9.8CVE-2018-5780Mitel connect onsite code injection vulnerabilityA vulnerability in the conferencing component of Mitel Connect ONSITE, versions R1711-PREM and earlier, and Mitel ST 14.2, release GA28 and earlier, …EPSS 1.7%9.8CVE-2018-5781Mitel connect onsite code injection vulnerabilityA vulnerability in the conferencing component of Mitel Connect ONSITE, versions R1711-PREM and earlier, and Mitel ST 14.2, release GA28 and earlier, …EPSS 1.7%9.8CVE-2018-5782Mitel connect onsite code injection vulnerabilityA vulnerability in the conferencing component of Mitel Connect ONSITE, versions R1711-PREM and earlier, and Mitel ST 14.2, release GA28 and earlier, …EPSS 19%6.1CVE-2019-9592Mitel connect onsite cross-site scripting vulnerabilityA reflected Cross-site scripting (XSS) vulnerability in ShoreTel Connect ONSITE 19.45.1602.0 allows remote attackers to inject arbitrary web script o…EPSS 5.3%6.1CVE-2019-9593Mitel connect onsite cross-site scripting vulnerabilityA reflected Cross-site scripting (XSS) vulnerability in ShoreTel Connect ONSITE 18.82.2000.0 allows remote attackers to inject arbitrary web script o…EPSS 4.4%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed6.1CVE-2025-48700Zimbra Classic UI stored XSS via crafted email HTMLZimbra Collaboration Suite Classic UI fails to properly sanitize HTML content in email messages, allowing crafted tag structures and attribute values…KEVEPSS 1.7%analysed

Source: NIST National Vulnerability Database (record CVE-2019-9591), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.