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.
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.
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)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| 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 |
| 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:*:*:*:*:*:* |