How severe is CVE-2011-2477?

CVE-2011-2477 has a CVSS 2.0 base score of 2.6, rated low severity.

Is CVE-2011-2477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2477?

CVE-2011-2477 primarily affects Icinga. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2477?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-2477 published?

CVE-2011-2477 was published on 2011-06-14 and last updated on 2026-06-16.

CVE-2011-2477

CVE-2011-2477 is a low-severity vulnerability in Icinga with a CVSS 2.0 base score of 2.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Low (CVSS 2.0 base score 2.6)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Icinga
Published: 2011-06-14
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in config.c in config.cgi in Icinga before 1.4.1, when escape_html_tags is disabled, allow remote attackers to inject arbitrary web script or HTML via a JavaScript expression, as demonstrated by the onload attribute of a BODY element located after a check-host-alive! sequence, a different vulnerability than CVE-2011-2179.

Frequently asked questions

What is CVE-2011-2477?: Multiple cross-site scripting (XSS) vulnerabilities in config.c in config.cgi in Icinga before 1.4.1, when escape_html_tags is disabled, allow remote attackers to inject arbitrary web script or HTML via a JavaScript expression, as demonstrated by the onload attribute of a BODY element located after a check-host-alive! sequence, a different vulnerability than CVE-2011-2179.
How severe is CVE-2011-2477?: CVE-2011-2477 has a CVSS 2.0 base score of 2.6, rated low severity.
Is CVE-2011-2477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2477?: CVE-2011-2477 primarily affects Icinga. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2477?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2477 published?: CVE-2011-2477 was published on 2011-06-14 and last updated on 2026-06-16.

References

Affected products (15)

cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:0.8.0:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:0.8.1:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:0.8.2:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:0.8.3:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:0.8.4:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:1.0:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:icinga:icinga:1.3.1:*:*:*:*:*:*:*

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