How severe is CVE-2013-4228?

CVE-2013-4228 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2013-4228 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4228?

CVE-2013-4228 primarily affects Organic Groups Project Organic Groups. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4228?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-4228 published?

CVE-2013-4228 was published on 2020-02-18 and last updated on 2026-06-16.

CVE-2013-4228

CVE-2013-4228 is a medium-severity vulnerability in Organic Groups Project Organic Groups with a CVSS 3.x base score of 4.3. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Organic Groups Project Organic Groups
Published: 2020-02-18
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2013-4228?: CVE-2013-4228 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2013-4228 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4228?: CVE-2013-4228 primarily affects Organic Groups Project Organic Groups. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4228?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4228 published?: CVE-2013-4228 was published on 2020-02-18 and last updated on 2026-06-16.

References

Affected products (14)

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

More vulnerabilities in Organic Groups Project Organic Groups

CVE-2013-7065 — Medium (CVSS 5.8): The Organic Groups (OG) module 7.x-2.x before 7.x-2.3 for Drupal allows remote attackers to bypass access restrictions…
CVE-2013-7068 — Medium (CVSS 4.9): The Organic Groups (OG) module 7.x-2.x before 7.x-2.3 for Drupal allows remote authenticated users to bypass group…
CVE-2008-3094 — Medium (CVSS 4.3): The Organic Groups (OG) module 5.x before 5.x-7.3 and 6.x before 6.x-1.0-RC1, a module for Drupal, allows remote…
CVE-2012-5539 — Low (CVSS 3.5): The Organic Groups (OG) module 7.x-1.x before 7.x-1.5 for Drupal does not properly maintain pending group memberships,…

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