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CVE-2013-4593

19
FAUCET Score

CVE-2013-4593 describes an access token security vulnerability within the RubyGem omniauth-facebook project. This vulnerability carries a CVSS v3.1 score of 7.5 (HIGH), indicating a network-exploitable flaw with low attack complexity that could lead to high integrity impact without requiring user interaction or privileges. Despite its severity, there is no evidence of active exploitation, readily available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.5.0CPE matchmatch criteria
cpe:2.3:a:omniauth-facebook_project:omniauth-facebook:*:*:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.75%
Probability of exploitation in next 30 days
EPSS Percentile
75.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0175 is in the 58th percentile among its peer group of 51,506 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, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

rubygemspatch availablevia ghsa
Product: omniauth-facebookFixed in: 1.5.1

Vendor Advisories (1)

rubygemsGHSA-33vg-hpx5-pfxghigh

omniauth-facebook Improper Authentication vulnerability

May 5, 2022

References

access.redhat.com / security/cve/cve-2013-4593
Broken Link
exchange.xforce.ibmcloud.com / vulnerabilities/89040
Third Party AdvisoryVDB Entry
security-tracker.debian.org / tracker/CVE-2013-4593
Third Party Advisory
openwall.com / lists/oss-security/2013/11/18/6
Mailing ListPatchThird Party Advisory