Nagios XI < 2011R1.9 XSS via xiwindow Variables Affecting Permalinks
Published Oct 30, 2025
5.1
MEDIUMCVSS 4.0
EPSS 0.61%
Description
Nagios XI versions prior to 2011R1.9 are vulnerable to cross-site scripting (XSS) via the handling of xiwindow variables used to build permalinks in the web interface. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.
Affected products
-
- Version 0StatusaffectedConstraints<2011R1.9
- Version
- ≤ 2009
- 2011
- 2011
- 2011
- 2011
- 2011
- 2011
- 2011
- 2011
- 2011
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Nagios addresses this vulnerability as "Fixed XSS vulnerability in xiwindow variables (affected permalinks)."
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Dec 22, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.61% (0.00607) | 47.10th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.48% (0.00482) | 37.60th | v5 (v2026.06.15) |
| Oct 31, 2025 | 0.30% (0.00305) | 53.37th | v4 (v2025.03.14) |
References (3)
- http://0a29.blogspot.com/2011/12/0a29-11-3-cross-site-scripting.html technical-descriptionexploit
- https://www.nagios.com/changelog/nagios-xi/ release-notespatchRelease Notes
- https://www.vulncheck.com/advisories/nagios-xi-xss-via-xiwindow-variables-affecting-permalinks third-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://0a29.blogspot.com/2011/12/0a29-11-3-cross-site-scripting.html | technical-descriptionexploit | |
| https://www.nagios.com/changelog/nagios-xi/ | release-notespatchRelease Notes | |
| https://www.vulncheck.com/advisories/nagios-xi-xss-via-xiwindow-variables-affecting-permalinks | third-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.