Medium severity · published Jul 30, 2020
CVE-2020-16157
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu
5.4
CVSS
14.4%
EPSS
No
On KEV
Description
A Stored XSS vulnerability exists in Nagios Log Server before 2.1.7 via the Notification Methods -> Email Users menu.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)14.4% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LS
Log Server · Nagios
before 2.1.7 · source: NVD
Affected product
LS
Log Server
Nagios
More from Log Server
9.8
CVE-2025-34277
Nagios Log Server < 2024R1.3.1 RCE via Malformed Dashboard ID
9.8
CVE-2025-34274
Nagios Log Server < 2024R2.0.3 Logstash Process Root Privileges
9.8
CVE-2025-34271
Nagios Log Server < 2024R2.0.2 Cluster Manager Credential Requests Sent Over Plaintext
8.8
CVE-2025-34298
Nagios Log Server < 2024R1.3.2 Set Email Privilege Escalation
8.8
CVE-2025-44823
Nagios Log Server before 2024R1.3.2 allows authenticated users to retrieve cleartext administrative API keys via a /nagioslogserver/index.php/api/system/get_users call