What’s Vulnerable › Vulnerabilities
CVE-2025-31691: OAuth2 Server - Moderately critical - Access bypass - SA-CONTRIB-2025-020
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-03-31 · updated 2026-06-17
- Weakness: CWE-862
Description
Missing Authorization vulnerability in Drupal OAuth2 Server allows Forceful Browsing.This issue affects OAuth2 Server: from 0.0.0 before 2.1.0.
Affected products
- Drupal OAuth2 Server: before 2.1.0 — fixed in 2.1.0
How to fix
Upgrade to a fixed version: Drupal OAuth2 Server 2.1.0. Check the vendor advisory for mitigations.
References
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