Medium severity · published Apr 8, 2021
CVE-2021-28924
Self Authenticated XSS in Nagios Network Analyzer before 2.4.2 via the nagiosna/groups/queries page
6.1
CVSS
10.5%
EPSS
No
On KEV
Description
Self Authenticated XSS in Nagios Network Analyzer before 2.4.2 via the nagiosna/groups/queries page.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)10.5% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NA
Network Analyzer · Nagios
before 2.4.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28924
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28924
Exploit
https://medium.com/stolabs/issues-found-on-nagios-network-analyzer-2-4-2-50ec4ffb5e25
Release Notes
https://www.nagios.com/downloads/nagios-network-analyzer/change-log/
More from Network Analyzer
9.8
CVE-2021-28925
SQL injection vulnerability in Nagios Network Analyzer before 2.4.3 via the o[col] parameter to api/checks/read/
7.5
CVE-2025-28059
An access control vulnerability in Nagios Network Analyzer 2024R1.0.3 allows deleted users to retain access to system resources due to improper session invalidation and stale…
7.2
CVE-2025-34280
Nagios Network Analyzer < 2024R2.0.1 RCE in LDAP Certificate Removal Function
5.4
CVE-2023-7319
Nagios Network Analyzer < 2024R1 XSS via Percentile Calculator Menu
5.4
CVE-2025-34278
Nagios Network Analyzer < 2024R1 Source Groups / Percentile Calculator Menu Stored XSS