Is CVE-2009-4214 in the CISA KEV catalog?

No. CVE-2009-4214 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-4214?

CVE-2009-4214 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2009-4214?

CVE-2009-4214 has an EPSS score of 3.02% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-4214?

Upgrade rails on debian 11 to 2.2.3-2 or later.

CVE & CISA-KEV Catalog

CVE-2009-4214

MEDIUMEPSS 86th pctl

4.3

CVSS v2

NVD

Description

Cross-site scripting (XSS) vulnerability in the strip_tags function in Ruby on Rails before 2.2.s, and 2.3.x before 2.3.5, allows remote attackers to inject arbitrary web script or HTML via vectors involving non-printing ASCII characters, related to HTML::Tokenizer and actionpack/lib/action_controller/vendor/html-scanner/html/node.rb.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

railsDebian

Fixed in:2.2.3-2CVE-2009-4214

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

3.02%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Patch3

Vendor Advisory2

Other references10

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

Embed a live status badge for CVE-2009-4214

Markdown

[![CVE-2009-4214](https://tridentstack.com/cve/badge/CVE-2009-4214.svg)](https://tridentstack.com/cve/CVE-2009-4214)

HTML

<a href="https://tridentstack.com/cve/CVE-2009-4214"><img src="https://tridentstack.com/cve/badge/CVE-2009-4214.svg" alt="CVE-2009-4214"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2026-04-23.