Vulnerability DatabaseCVE-2025-12466

CVE-2025-12466:
PHP vulnerability analysis and mitigation

Overview

The vulnerability CVE-2025-12466 is an Authentication Bypass vulnerability affecting Drupal Simple OAuth (OAuth2) & OpenID Connect module versions from 6.0.0 before 6.0.7. The vulnerability was discovered and disclosed on October 29, 2025, and allows attackers to bypass authentication mechanisms using an alternate path or channel (NVD).

Technical details

The vulnerability is classified as CWE-288 (Authentication Bypass Using an Alternate Path or Channel). According to the CVSS 3.1 scoring, it received a HIGH severity score of 7.5 with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating network accessibility, low attack complexity, no privileges required, and no user interaction needed (NVD).

Impact

The vulnerability primarily affects the confidentiality of the system, with a High impact rating for confidentiality but no direct impact on integrity or availability. This suggests that successful exploitation could lead to unauthorized access to sensitive information (NVD).

Mitigation and workarounds

Users are advised to upgrade to Simple OAuth (OAuth2) & OpenID Connect version 6.0.7 or later to address this vulnerability (NVD).

Additional resources

Source: This report was generated using AI

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7.5

Score

Published October 30, 2025

Severity HIGH

CNA Score 7.5

Affected Technologies

PHP
Drupal

Has Public Exploit No

Has CISA KEV Exploit No

CISA KEV Release Date N/A

CISA KEV Due Date N/A

Exploitation Probability Percentile (EPSS) 18.7

Exploitation Probability (EPSS) 0.1

Affected packages and libraries

cpe:2.3:a:drupal:drupal
drupal/simple_oauth

Sources

NVD
GitHub Advisory Database
- Composer Severity HIGHHas FixAdded at: Nov 02, 2025
VulnCheck NVD++
- Linux Severity HIGHHas FixAdded at: Nov 02, 2025
- Windows Severity HIGHHas FixAdded at: Nov 02, 2025

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Related PHP vulnerabilities:

CVE ID	Severity	Score	Technologies	Component name	CISA KEV exploit	Has fix	Published date
GHSA-898v-775g-777c	CRITICAL	9.4	PHP	neuron-core/neuron-ai	No	Yes	Dec 09, 2025
GHSA-5j8p-438x-rgg5	CRITICAL	9.3	PHP	onelogin/php-saml	No	Yes	Dec 09, 2025
GHSA-j8g6-5gqc-mq36	HIGH	8.2	PHP	neuron-core/neuron-ai	No	Yes	Dec 09, 2025
GHSA-pvcv-q3q7-266g	HIGH	8.1	PHP	filament/filament	No	Yes	Dec 09, 2025
GHSA-6w82-v552-wjw2	HIGH	7.1	PHP	shopware/shopware	No	Yes	Dec 09, 2025

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CVE-2025-12466: PHP vulnerability analysis and mitigation