How severe is CVE-2013-4593?

CVE-2013-4593 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2013-4593 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4593?

CVE-2013-4593 affects Omniauth-facebook Project Omniauth-facebook. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-4593?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-4593 published?

CVE-2013-4593 was published on 2019-12-11 and last updated on 2026-06-16.

CVE-2013-4593

CVE-2013-4593 is a high-severity vulnerability in Omniauth-facebook Project Omniauth-facebook with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Omniauth-facebook Project Omniauth-facebook
Published: 2019-12-11
Last modified: 2026-06-16

Description

RubyGem omniauth-facebook has an access token security vulnerability

Frequently asked questions

What is CVE-2013-4593?: RubyGem omniauth-facebook has an access token security vulnerability
How severe is CVE-2013-4593?: CVE-2013-4593 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2013-4593 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4593?: CVE-2013-4593 affects Omniauth-facebook Project Omniauth-facebook. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-4593?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-4593 published?: CVE-2013-4593 was published on 2019-12-11 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:omniauth-facebook_project:omniauth-facebook:*:*:*:*:*:ruby:*:*

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