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CVE-2013-4177

15
FAUCET Score

CVE-2013-4177 describes a vulnerability in the Google Authenticator login module for Drupal versions 6.x-1.x before 6.x-1.2 and 7.x-1.x before 7.x-1.4. This flaw allows remote attackers to bypass two-factor authentication due to improper user account identification. With a CVSS score of 5.0, it is a medium severity issue, requiring no authentication (AV:N/Au:N) and having low attack complexity (AC:L), leading to a potential integrity impact (I:P). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.x-1.0CPE matchmatch criteria
cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.0:alpha1:*:*:*:*:*:*
6.x-1.0CPE matchmatch criteria
cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.0:beta1:*:*:*:*:*:*
6.x-1.0CPE matchmatch criteria
cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.0:beta2:*:*:*:*:*:*
6.x-1.1CPE matchmatch criteria
cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.1:*:*:*:*:*:*:*
6.x-1.xCPE matchmatch criteria
cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.x:dev:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 52nd percentile among its peer group of 23,690 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, 0.0 Mastodon, and 0.4 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

Remediation records are not available for this CVE.

References

drupal.org / node/1995482
Patch
drupal.org / node/1995634
Patch
drupal.org / node/1995706
PatchVendor Advisory
securityfocus.com / bid/59884