CVE-2020-16157
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods ...
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu.
- Record
CVE-2020-16157- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/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
CVE List No score
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu.
- Record
CVE-2020-16157- Updated
- 2026-11-02
EUVDEUVD-2020-8123 No score
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu.
- Record
EUVD-2020-8123- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9cr7-wpqj-r957
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods ...
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu.
- Record
GHSA-9cr7-wpqj-r957- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/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-2020-16157 is a medium vulnerability (CVSS 5.4) in Nagios Log Server, published July 30, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 14.4%, the 96th percentile. No source names a fixed version.
References
nagios.com/downloads/nagios-log-server/change-log
getastra.com/blog/911/stored-xss-vulnerability-nagios-log-server
jinsonvarghese.com/stored-xss-vulnerability-in-nagios-log-server
packetstormsecurity.com/files/158992/Nagios-Log-Server-2.1.6-Cross-Site-Scripting.html
nvd.nist.gov/vuln/detail/CVE-2020-16157
github.com/advisories/GHSA-9cr7-wpqj-r957