CVE-2018-12901
A vulnerability in the conferencing component of Mitel ST 14.2, versions GA29 (19.49.9400.0) and...
A vulnerability in the conferencing component of Mitel ST 14.2, versions GA29 (19.49.9400.0) and earlier, could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack due to insufficient validation for the signin.php page. A successful exploit could allow an attacker to execute arbitrary scripts.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A vulnerability in the conferencing component of Mitel ST 14.2, versions GA29 (19.49.9400.0) and earlier, could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack due to insufficient validation for the signin.php page. A successful exploit could allow an attacker to execute arbitrary scripts.
- Record
CVE-2018-12901- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
A vulnerability in the conferencing component of Mitel ST 14.2, versions GA29 (19.49.9400.0) and earlier, could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack due to insufficient validation for the signin.php page. A successful exploit could allow an attacker to execute arbitrary scripts.
- Record
CVE-2018-12901- Updated
- 2026-11-02
EUVDEUVD-2018-4854 No score
A vulnerability in the conferencing component of Mitel ST 14.2, versions GA29 (19.49.9400.0) and earlier, could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack due to insufficient validation for the signin.php page. A successful exploit could allow an attacker to execute arbitrary scripts.
- Record
EUVD-2018-4854- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xjcf-cqpg-j64p
A vulnerability in the conferencing component of Mitel ST 14.2, versions GA29 (19.49.9400.0) and...
A vulnerability in the conferencing component of Mitel ST 14.2, versions GA29 (19.49.9400.0) and earlier, could allow an unauthenticated attacker to conduct a reflected cross-site scripting (XSS) attack due to insufficient validation for the signin.php page. A successful exploit could allow an attacker to execute arbitrary scripts.
- Record
GHSA-xjcf-cqpg-j64p- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-12901 is a medium vulnerability (CVSS 6.1) in Mitel St Firmware, published October 23, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.12%, the 66th percentile. No source names a fixed version.