How severe is CVE-2015-6661?

CVE-2015-6661 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-6661 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6661?

CVE-2015-6661 primarily affects Drupal. In total, 95 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6661?

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

When was CVE-2015-6661 published?

CVE-2015-6661 was published on 2015-08-24 and last updated on 2026-06-17.

CVE-2015-6661

CVE-2015-6661 is a medium-severity vulnerability in Drupal with a CVSS 2.0 base score of 5.0. 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-200.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Drupal
Published: 2015-08-24
Last modified: 2026-06-17

Description

Drupal 6.x before 6.37 and 7.x before 7.39 allows remote attackers to obtain sensitive node titles by reading the menu.

Frequently asked questions

What is CVE-2015-6661?: Drupal 6.x before 6.37 and 7.x before 7.39 allows remote attackers to obtain sensitive node titles by reading the menu.
How severe is CVE-2015-6661?: CVE-2015-6661 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-6661 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6661?: CVE-2015-6661 primarily affects Drupal. In total, 95 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6661?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6661 published?: CVE-2015-6661 was published on 2015-08-24 and last updated on 2026-06-17.

References

Affected products (95)

cpe:2.3:a:drupal:drupal:6.0:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.0:beta1:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.0:beta2:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.0:beta3:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.0:beta4:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.0:dev:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.1:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.2:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.3:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.4:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.5:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.6:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.7:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.8:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.9:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.10:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.11:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.12:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.13:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.14:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.15:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.16:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.17:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.18:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.19:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.20:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.21:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.22:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.23:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.24:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.25:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.26:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.27:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.28:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.29:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.30:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.31:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.32:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.33:*:*:*:*:*:*:*
cpe:2.3:a:drupal:drupal:6.34:*:*:*:*:*:*:*

More vulnerabilities in Drupal

CVE-2009-3352 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in the quota_by_role (Quota by role) module for Drupal have unknown impact and…
CVE-2026-9082 — Critical (CVSS 9.8): Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Drupal Drupal…
CVE-2024-55638 — Critical (CVSS 9.8): Deserialization of Untrusted Data vulnerability in Drupal Core allows Object Injection.This issue affects Drupal Core:…
CVE-2024-55637 — Critical (CVSS 9.8): Deserialization of Untrusted Data vulnerability in Drupal Core allows Object Injection.This issue affects Drupal Core:…
CVE-2024-55636 — Critical (CVSS 9.8): Deserialization of Untrusted Data vulnerability in Drupal Core allows Object Injection.This issue affects Drupal Core:…
CVE-2020-13675 — Critical (CVSS 9.8): Drupal's JSON:API and REST/File modules allow file uploads through their HTTP APIs. The modules do not correctly run…

All CVEs affecting Drupal →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →