How severe is CVE-2025-12466?

CVE-2025-12466 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-12466 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-12466?

CVE-2025-12466 affects Simple Oauth Project Simple Oauth. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-12466?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-12466 have an EU (EUVD) identifier?

Yes. CVE-2025-12466 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36872.

When was CVE-2025-12466 published?

CVE-2025-12466 was published on 2025-10-30 and last updated on 2026-06-17.

CVE-2025-12466

CVE-2025-12466 is a high-severity vulnerability in Simple Oauth Project Simple Oauth with a CVSS 3.x base score of 7.5. 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-288.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-36872
Weakness: CWE-288
Affected product: Simple Oauth Project Simple Oauth
Published: 2025-10-30
Last modified: 2026-06-17

Description

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Authentication Bypass.This issue affects Simple OAuth (OAuth2) & OpenID Connect: from 6.0.0 before 6.0.7.

Frequently asked questions

What is CVE-2025-12466?: Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Authentication Bypass.This issue affects Simple OAuth (OAuth2) & OpenID Connect: from 6.0.0 before 6.0.7.
How severe is CVE-2025-12466?: CVE-2025-12466 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-12466 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-12466?: CVE-2025-12466 affects Simple Oauth Project Simple Oauth. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-12466?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-12466 have an EU (EUVD) identifier?: Yes. CVE-2025-12466 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36872.
When was CVE-2025-12466 published?: CVE-2025-12466 was published on 2025-10-30 and last updated on 2026-06-17.

References

https://www.drupal.org/sa-contrib-2025-114

Affected products (1)

cpe:2.3:a:simple_oauth_project:simple_oauth:*:*:*:*:*:drupal:*:*

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