PT-2025-13855 · Drupal · Drupal Oauth2 Server

Cafuego + 3 · Published 2025-03-31 · Updated 2025-04-01 · CVE-2025-31691

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Drupal OAuth2 Server versions 0.0.0 through 2.0.x

Description The issue is related to a Missing Authorization vulnerability in the Drupal OAuth2 Server, which allows Forceful Browsing.

Recommendations For versions 0.0.0 through 2.0.x, update to version 2.1.0 or later to resolve the issue.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2025-31691

DRUPAL-CONTRIB-2025-020

GHSA-4F8Q-MWGC-3MWC

Affected Products

Drupal Oauth2 Server

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-31691 · Security Note
• https://osv.dev/vulnerability/CVE-2025-31691 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-4f8q-mwgc-3mwc · Vendor Advisory
• https://git.drupalcode.org/project/oauth2_server · Note
• https://drupal.org/sa-contrib-2025-020 · Note
• https://twitter.com/CVEnew/status/1906832639861899634 · Twitter Post
• https://t.me/cvedetector/21669 · Telegram Post