CVE-2019-9508
Vertiv Avocent UMG-4000 version 4.2.1.19 web interface is vulnerable to stored cross site scripting
The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to stored XSS. A remote attacker authenticated with an administrator account could store a maliciously named file within the web application that would execute each time a user browsed to the page.
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
- Low
Exploit likelihood
What each source reports
CVE List Score used
Vertiv Avocent UMG-4000 version 4.2.1.19 web interface is vulnerable to stored cross site scripting
The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to stored XSS. A remote attacker authenticated with an administrator account could store a maliciously named file within the web application that would execute each time a user browsed to the page.
- Record
CVE-2019-9508- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2019-18882
The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to stored XSS. A remote attacker authenticated with an administrator account could store a maliciously named file within the web application that would execute each time a user browsed to the page.
- Record
EUVD-2019-18882- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5hq8-wjj7-762c No score
The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to stored XSS. A...
The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to stored XSS. A remote attacker authenticated with an administrator account could store a maliciously named file within the web application that would execute each time a user browsed to the page.
- Record
GHSA-5hq8-wjj7-762c- Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to stored XSS. A remote attacker authenticated with an administrator account could store a maliciously named file within the web application that would execute each time a user browsed to the page.
- Record
CVE-2019-9508- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-9508 is a medium vulnerability (CVSS 6.3) in Vertiv Avocent Umg-4000, published March 30, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.63%, the 50th percentile. No source names a fixed version.
References
vertiv.com/en-us/support/software-download/it-management/avocent-universal-management-gateway-appliance--software-downloads
nvd.nist.gov/vuln/detail/CVE-2019-9508
github.com/advisories/GHSA-5hq8-wjj7-762c