CVE-2021-33179 json
The general user interface in Nagios XI versions prior to 5.8.4 is vulnerable to authenticated reflected cross-site scripting.
published 2021-10-14 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-19894
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 11.7%
- EPSS 11.7% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
The general user interface in Nagios XI versions prior to 5.8.4 is vulnerable to authenticated reflected cross-site scripting. An authenticated victim, who accesses a specially crafted malicious URL, would unknowingly execute the attached payload.
Patch / fix
- nagios nagios_xi 5.8.4
Exploit prediction
11.68% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Nagios Nagios XI
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
synopsys.com
/blogs/software-security/cyrc-advisory-nagios-xi
third-party-advisory
Sources
- CVE List CVE-2021-33179
- NVD CVE-2021-33179
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