CVE-2020-16157 json
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu.
published 2020-07-30 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-8123
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 14.4%
- EPSS 14.4% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu.
Patch / fix
- nagios log_server 2.1.7
Exploit prediction
14.41% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- packetstormsecurity.com http://packetstormsecurity.com/files/158992/Nagios-Log-Server-2.1.6-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
packetstormsecurity.com
/files/158992/Nagios-Log-Server-2.1.6-Cross-Site-Scripting.html
broken-link, exploit, third-party-advisory, vdb-entry
-
nagios.com
/downloads/nagios-log-server/change-log/
release-notes, vendor-advisory
-
getastra.com
/blog/911/stored-xss-vulnerability-nagios-log-server/
third-party-advisory
-
jinsonvarghese.com
/stored-xss-vulnerability-in-nagios-log-server/
third-party-advisory
Sources
- CVE List CVE-2020-16157
- NVD CVE-2020-16157
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.