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CVE-2013-4562

18
FAUCET Score

CVE-2013-4562 describes a Cross-Site Request Forgery (CSRF) vulnerability in the omniauth-facebook gem versions prior to 1.5.0, specifically impacting madeofcode omniauth-facebook. This medium-severity vulnerability (CVSS 6.8) allows remote attackers to execute CSRF attacks by manipulating the 'state' parameter due to improper session parameter storage. While the potential impact includes partial confidentiality, integrity, and availability compromise, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.1CPE matchmatch criteria
cpe:2.3:a:madeofcode:omniauth-facebook:1.4.1:*:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 28th percentile among its peer group of 19,955 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 (2)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: omniauth-facebookFixed in: 1.5.0

Vendor Advisories (1)

rubygemsGHSA-cf36-985g-v73cmedium

omniauth-facebook Cross-Site Request Forgery vulnerability

Oct 24, 2017

References

osvdb.org / ref/99/omniauth-facebook_gem.txt
seclists.org / oss-sec/2013/q4/264
seclists.org / oss-sec/2013/q4/267
github.com / mkdynamic/omniauth-facebook/commit/ccfcc26fe7e34acbd75ad4a095fd01ce5ff48ee7
ExploitPatch
groups.google.com / d/msg/ruby-security-ann/-tJHNlTiPh4/9SJxdEWLIawJ
osvdb.org / 99693