CVE-2010-3686

The OpenID module in Drupal 6.x before 6.18, and the OpenID module 5.x before 5.x-1.4 for Drupal, violates the OpenID 2.0 protocol by not ensuring that fields are signed, which allows remote attackers to bypass authentication by leveraging an assertion from an OpenID provider.

Published: 2010-09-29 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2010-3686 is rated Moderate Risk (44.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.63%). Mandatory action: 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-2010-3686

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 2026-06-01 0.70% 0.63% -0.07%
2 2026-05-28 0.63% 0.70% +0.07%
3 2026-05-25 0.63%

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-3686

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/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:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2010-3686

OS Trackers for CVE-2010-3686

vendor priority summary link
ubuntu medium CVE-2010-3686 medium priority: Ubuntu including 2 source packages (drupal5, drupal6), 16 status rows across 8 suites (dapper, hardy, jaunty, karmic, lucid, maverick, natty, upstream): DNE 6, released 5, ignored 3, not-affected 2. https://ubuntu.com/security/CVE-2010-3686

Affected software / configurations for CVE-2010-3686

Vendor Product Version Raw CPE
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:*:*:*:*:*:*:*
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:beta1:*:*:*:*:*:*
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:beta2:*:*:*:*:*:*
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:beta3:*:*:*:*:*:*
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:beta4:*:*:*:*:*:*
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:dev:*:*:*:*:*:*
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:rc1:*:*:*:*:*:*
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:rc2:*:*:*:*:*:*
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:rc3:*:*:*:*:*:*
drupal drupal 6.0 cpe:2.3:a:drupal:drupal:6.0:rc4:*:*:*:*:*:*
drupal drupal 6.1 cpe:2.3:a:drupal:drupal:6.1:*:*:*:*:*:*:*
drupal drupal 6.2 cpe:2.3:a:drupal:drupal:6.2:*:*:*:*:*:*:*
drupal drupal 6.3 cpe:2.3:a:drupal:drupal:6.3:*:*:*:*:*:*:*
drupal drupal 6.4 cpe:2.3:a:drupal:drupal:6.4:*:*:*:*:*:*:*
drupal drupal 6.5 cpe:2.3:a:drupal:drupal:6.5:*:*:*:*:*:*:*
drupal drupal 6.6 cpe:2.3:a:drupal:drupal:6.6:*:*:*:*:*:*:*
drupal drupal 6.7 cpe:2.3:a:drupal:drupal:6.7:*:*:*:*:*:*:*
drupal drupal 6.8 cpe:2.3:a:drupal:drupal:6.8:*:*:*:*:*:*:*
drupal drupal 6.9 cpe:2.3:a:drupal:drupal:6.9:*:*:*:*:*:*:*
drupal drupal 6.10 cpe:2.3:a:drupal:drupal:6.10:*:*:*:*:*:*:*
drupal drupal 6.11 cpe:2.3:a:drupal:drupal:6.11:*:*:*:*:*:*:*
drupal drupal 6.12 cpe:2.3:a:drupal:drupal:6.12:*:*:*:*:*:*:*
drupal drupal 6.13 cpe:2.3:a:drupal:drupal:6.13:*:*:*:*:*:*:*
drupal drupal 6.14 cpe:2.3:a:drupal:drupal:6.14:*:*:*:*:*:*:*
drupal drupal 6.15 cpe:2.3:a:drupal:drupal:6.15:*:*:*:*:*:*:*
drupal drupal 6.16 cpe:2.3:a:drupal:drupal:6.16:*:*:*:*:*:*:*
drupal drupal 6.17 cpe:2.3:a:drupal:drupal:6.17:*:*:*:*:*:*:*
peter_wolanin openid 5.x-1.0 cpe:2.3:a:peter_wolanin:openid:5.x-1.0:*:*:*:*:*:*:*
peter_wolanin openid 5.x-1.1 cpe:2.3:a:peter_wolanin:openid:5.x-1.1:*:*:*:*:*:*:*
peter_wolanin openid 5.x-1.2 cpe:2.3:a:peter_wolanin:openid:5.x-1.2:*:*:*:*:*:*:*
peter_wolanin openid 5.x-1.3 cpe:2.3:a:peter_wolanin:openid:5.x-1.3:*:*:*:*:*:*:*
peter_wolanin openid 5.x-1.x cpe:2.3:a:peter_wolanin:openid:5.x-1.x:dev:*:*:*:*:*:*

References for CVE-2010-3686

cvelogic Threat Intelligence