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Fencer Intel
medium 4.3

CVE-2011-2179 json

Multiple cross-site scripting (XSS) vulnerabilities in config.c in config.cgi in (1) Nagios 3.2.3 and (2) Icinga before 1.4.1 allow remote…

published 2011-06-14 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2171

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
26.0%
EPSS 26.0% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

Multiple cross-site scripting (XSS) vulnerabilities in config.c in config.cgi in (1) Nagios 3.2.3 and (2) Icinga before 1.4.1 allow remote attackers to inject arbitrary web script or HTML via the expand parameter, as demonstrated by an (a) command action or a (b) hosts action.

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-2179 updated cvss 3.5

nagios: XSS in configuration command expansion

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-35818)
  2. Published

Exploit prediction

26.04% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-35818 Nagios 3.2.3 - 'expand' Cross-Site Scripting remote, 2011-06-01
  • archives.neohapsis.com http://archives.neohapsis.com/archives/bugtraq/2011-06/0018.html referenced PoC, tagged "exploit" by a source, unverified
  • tracker.nagios.org http://tracker.nagios.org/view.php?id=224 referenced PoC, tagged "exploit" by a source, unverified
  • rul3z.de http://www.rul3z.de/advisories/SSCHADV2011-006.txt referenced PoC, tagged "exploit" by a source, unverified
  • dev.icinga.org https://dev.icinga.org/issues/1605 referenced PoC, tagged "exploit" by a source, unverified
  • rul3z.de http://www.rul3z.de/advisories/SSCHADV2011-005.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.