CVE-2013-4593
omniauth-facebook Improper Authentication vulnerability
RubyGem omniauth-facebook has an access token security vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
RubyGem omniauth-facebook has an access token security vulnerability
- Record
CVE-2013-4593- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
CVE List No score
RubyGem omniauth-facebook has an access token security vulnerability
- Record
CVE-2013-4593- Updated
- 2026-11-02
EUVDEUVD-2022-2099 No score
RubyGem omniauth-facebook has an access token security vulnerability
- Record
EUVD-2022-2099- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-33vg-hpx5-pfxg
omniauth-facebook Improper Authentication vulnerability
RubyGem omniauth-facebook has an access token security vulnerability.
- Record
GHSA-33vg-hpx5-pfxg- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
OSVGHSA-33vg-hpx5-pfxg
omniauth-facebook Improper Authentication vulnerability
RubyGem omniauth-facebook has an access token security vulnerability.
- Record
GHSA-33vg-hpx5-pfxg- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
omniauth-facebookRubyGems |
before 1.5.1 | 1.5.1 |
omniauth-facebookRubyGems |
before 1.5.1, plus listed versions 1.0.01.0.0.rc11.0.0.rc21.1.01.2.0 Show 4 moreShow less1.3.01.4.01.4.11.5.0 |
1.5.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-4593 is a high vulnerability (CVSS 7.5) in Omniauth-facebook, published December 11, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.75%, the 78th percentile. Fixed in omniauth-facebook 1.5.1.
References
security-tracker.debian.org/tracker/CVE-2013-4593
access.redhat.com/security/cve/cve-2013-4593
openwall.com/lists/oss-security/2013/11/18/6
exchange.xforce.ibmcloud.com/vulnerabilities/89040
nvd.nist.gov/vuln/detail/CVE-2013-4593
github.com/simi/omniauth-facebook/commit/115c0a768cd6f4b9bfae8900f8e3fc4fbeec3ad8