Is CVE-2011-0447 in the CISA KEV catalog?

No. CVE-2011-0447 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-0447?

CVE-2011-0447 has a CVSS v2 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2011-0447?

CVE-2011-0447 has an EPSS score of 1.41% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2011-0447?

Upgrade rails on debian 11 to 2.3.11-0.1 or later.

CVE & CISA-KEV Catalog

CVE-2011-0447

MEDIUM

6.8

CVSS v2

NVD

Description

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

CWE-352Cross-Site Request Forgery

How to fix

Remediation Available

railsDebian

Fixed in:2.3.11-0.1CVE-2011-0447

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.41%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Patch2

Other references10

Related Vulnerabilities

Other CWE-352 (Cross-Site Request Forgery) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-6277	High	8.8	100%	KEV	-
CVE-2014-0054	Medium	6.8	91%	-	Fix
CVE-2013-6429	Medium	6.8	90%	-	Fix
CVE-2022-41622	High	8.8	88%	-	-
CVE-2018-7700	High	8.8	75%	-	-
CVE-2015-2295	Medium	6.8	66%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.