Home/CVE/The general user interface in Nagios XI versions prior to 5.8.4 is vulnerable to authenticated reflected cross-site scri
CVE

CVE-2021-33179

The general user interface in Nagios XI versions prior to 5.8.4 is vulnerable to authenticated reflected cross-site scri

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.

MEDIUM · CVSS 6.1 EPSS 0.64832
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  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
Sigma rules0 YARA rules0
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Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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Affected Products & Versions

1
nagios xi< 5.8.4
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Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · disclosure@synopsys.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Oct 2021 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.synopsys.com/blogs/software-security/cyrc-advisory-nagios-xiThird Party Advisory
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