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CVE-2013-6416

14
FAUCET Score

CVE-2013-6416 is a cross-site scripting (XSS) vulnerability found in the simple_format helper within Ruby on Rails 4.x before version 4.0.2. This flaw allows remote attackers to inject arbitrary web script or HTML by crafting malicious HTML attributes. With a CVSS score of 4.3 (medium severity), it requires medium attack complexity and could lead to information disclosure or defacement, but not impact availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.1CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:*:-:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.0.0:-:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.0.0:beta:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.0.0:rc1:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:4.0.0:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.96%
Probability of exploitation in next 30 days
EPSS Percentile
78.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0196 is in the 62nd percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

rubygemspatch availablevia ghsa
Product: actionpackFixed in: 4.0.2

Vendor Advisories (2)

rubygemsGHSA-w37c-q653-qg95medium

actionpack Cross-site Scripting vulnerability

Oct 24, 2017
redhatCVE-2013-6416Moderate

rubygem-actionpack: simple_format XSS

Dec 3, 2013

References

groups.google.com / forum/message/raw
weblog.rubyonrails.org / 2013/12/3/Rails_3_2_16_and_4_0_2_have_been_released
securityfocus.com / bid/64071