CVE-2013-4228

The OG access fields (visibility fields) implementation in Organic Groups (OG) module 7.x-2.x before 7.x-2.3 for Drupal does not properly restrict access to private groups, which allows remote authenticated users to guess node IDs, subscribe to, and read the content of arbitrary private groups via unspecified vectors.

Published: 2020-02-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4228 is rated Moderate Risk (40.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.16%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-4228

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.23% 1.16% +0.92%
2 2025-03-30 0.26% 0.23% -0.02%
3 2025-03-29 — 0.26% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4228

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2013-4228

Affected software / configurations for CVE-2013-4228

Vendor Product Version Raw CPE
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:-:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:alpha1:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:alpha2:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:alpha3:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:beta1:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:beta2:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:beta3:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:beta4:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:rc1:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:rc2:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:rc3:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.0 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.0:rc4:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.1 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.1:*:*:*:*:drupal:*:*
organic_groups_project organic_groups 7.x-2.2 cpe:2.3:a:organic_groups_project:organic_groups:7.x-2.2:*:*:*:*:drupal:*:*

References for CVE-2013-4228

URL Tags
http://www.openwall.com/lists/oss-security/2013/08/10/1 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/61708 Third Party Advisory VDB Entry
https://drupal.org/node/2059755 Release Notes Vendor Advisory
https://drupal.org/node/2059765 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/86328 VDB Entry Vendor Advisory
cvelogic Threat Intelligence